<B>umbrella bird,</B><DL COMPACT><DD> any one of a group of tropical American birds, such as a kind that is black with a crest of long, curved feathers resembling an umbrella; dragoon bird. </DL>
<A NAME="umbrellaleaf">
<B>umbrella leaf,</B><DL COMPACT><DD> a North American plant of the barberry family, having either a large umbrellalike leaf on a stout petiole, or a flowering stem with two similar but smaller leaves. </DL>
<A NAME="umbrellapalm">
<B>umbrella palm,</B><DL COMPACT><DD> a palm of the Solomon Islands, with pinnate leaves, grown for ornament in Florida and California. </DL>
<A NAME="umbrellapine">
<B>umbrella pine,</B><DL COMPACT><DD> a tall, evergreen tree of the taxodium family, shaped like an umbrella, with tufts of stiff, leaflike petioles resembling pine needles. It is native to Japan but is grown in many parts of the world for shade. <BR> <I>Ex. Long ago we had spent a week in June at San Sebastian to cool off under the umbrella pines from the heat of Madrid (Alice B. Toklas).</I> </DL>
<A NAME="umbrellaplant">
<B>umbrella plant,</B><DL COMPACT><DD> an African plant of the sedge family, having several stems with umbrella-shaped clusters of leaves at the top. The umbrella plant is commonly grown in greenhouses as a potted plant. </DL>
<A NAME="umbrellatent">
<B>umbrella tent,</B><DL COMPACT><DD> a tent made like an umbrella. The covered frame of an umbrella tent consists of ribs attached radially to a central staff or rod that supports the tent. </DL>
<A NAME="umbrellatree">
<B>umbrella tree,</B><DL COMPACT><DD><B> 1. </B>an American magnolia tree having long leaves in clusters radiating from the ends of the branches, suggesting umbrellas. <DD><B> 2. </B>any one of several other trees whose leaves or habit of growth resemble a shape suggesting an open umbrella. </DL>
<A NAME="umbrellawort">
<B>umbrellawort, </B>noun.<DL COMPACT><DD> any one of a group of chiefly American herbs, having opposite leaves, and flower-containing involucres in loose, terminal panicles; four-o'clock. </DL>
<A NAME="umbrette">
<B>umbrette, </B>noun.<DL COMPACT><DD> an African and Arabian wading bird with deep-brown plumage, related to the storks and herons; umber; umber bird. </DL>
<A NAME="umbrian">
<B>Umbrian, </B>adjective, noun.<DL COMPACT><DD><I>adj. </I> <B>1. </B>of or belonging to Umbria, an ancient region in central and northern Italy, or its people. <DD><B> 2. </B>of or having to do with the Italic dialect of ancient Umbria. <DD><I>noun </I> <B>1. </B>a native or inhabitant of the modern district of Umbria. <DD><B> 2. </B>a member of an Italic people who lived in ancient Umbria. <DD><B> 3. </B>the Italic dialect, closely related to Oscan, spoken in ancient Umbria. </DL>
<A NAME="umbriferous">
<B>umbriferous, </B>adjective.<DL COMPACT><DD> giving shade; umbrageous. <BR> <I>Ex. whiling away an afternoon lying under the umbriferous bows of an old elm.</I> adv. <B>umbriferously.</B> </DL>
<A NAME="umbril">
<B>umbril, </B>noun.<DL COMPACT><DD> the visor of a helmet. </DL>
<A NAME="umbrous">
<B>umbrous, </B>adjective.<DL COMPACT><DD> lying in the shade; shadowed. </DL>
<A NAME="umbundu">
<B>Umbundu, </B>noun, pl. <B>-du</B> or <B>-dus.</B><DL COMPACT><DD><B> 1. </B>a member of a Bantu people of central Angola. <DD><B> 2. </B>the language of this people. </DL>
<A NAME="umiak">
<B>umiak</B> or <B>umiack, </B>noun.<DL COMPACT><DD> an open Eskimo boat made of skins covering a wooden or bone frame and worked by paddles. The umiak is very much broader and usually longer than a kayak. It is used especially by the women of a family or group of families to bring back the meat killed by the men and to transport a family and its possessions from place to place. Also, <B>oomiac,</B> <B>oomiak.</B> </DL>
<A NAME="umlaut">
<B>umlaut, </B>noun, verb.<DL COMPACT><DD><I>noun </I> <B>1. </B>the partial assimilation of a vowel to another vowel in a preceding or following syllable. <DD><B> 2. </B>a change in vowel sound in the Germanic languages because of the influence of another vowel in the following syllable, now generally lost but responsible for such pairs as English <I>man-men, foot-feet,</I> and <I>gold-gild</I> where the vowels of <I>men, feet,</I> and <I>gild</I> are the result of umlaut. <DD><B> 3. </B>a vowel that is the result of such a change. <DD><B> 4. </B>the sign used to indicate such a vowel. <DD><I>v.t. </I> <B>1. </B>to modify by umlaut. <DD><B> 2. </B>to write (a vowel) with an umlaut. </DL>
<A NAME="ump">
<B>ump, </B>noun, verb.<DL COMPACT><DD> (Slang.) <DD><I>noun </I> an umpire. <BR> <I>Ex. For Americans everywhere, there is no thrill like being there when the ump yells, "Play ball!" (Time).</I> <DD><I>v.i., v.t. </I> to umpire. <BR> <I>Ex. Who's going to ump the game?</I> </DL>
<A NAME="umph">
<B>umph</B> (1), interjection, noun. =humph.</DL>
<A NAME="umph">
<B>umph</B> (2), noun. =oomph.</DL>
<A NAME="umpirage">
<B>umpirage, </B>noun.<DL COMPACT><DD><B> 1. </B>the act of umpiring or arbitrating. <DD><B> 2. </B>the office or power of an umpire or arbiter. <DD><B> 3. </B>the decision of an umpire or arbiter. </DL>
<A NAME="umpire">
<B>umpire, </B>noun, verb, <B>-pired,</B> <B>-piring.</B><DL COMPACT><DD><I>noun </I> <B>1. </B>a person who rules on the plays in a game and who sees that the rules are not broken. <BR> <I>Ex. The umpire called the ball a foul.</I> (SYN) referee. <DD><B> 2. </B>a person chosen to settle a dispute; arbiter, especially one whose decisions are binding on both or all parties to the dispute. (SYN) judge, arbitrator, mediator. <DD><I>v.t. </I> to act as an umpire in (a game or dispute). <DD><I>v.i. </I> to act as an umpire. </DL>
<A NAME="umpireship">
<B>umpireship, </B>noun.<DL COMPACT><DD> the office of an umpire; arbitrament; umpirage. </DL>
<A NAME="umpteen">
<B>umpteen, </B>adjective.<DL COMPACT><DD> (Informal.) of a great but indefinite number; being one of a long series; countless. <BR> <I>Ex. There have been umpteen versions of The Three Musketeers and none of 'em ever lost money (Time).</I> </DL>
<A NAME="umpteenth">
<B>umpteenth, </B>adjective.<DL COMPACT><DD> (Informal.) being the last of a great but indefinite number or of a long series. <BR> <I>Ex. the umpteenth version of Beauty and the Beast (New York Times).</I> </DL>
<A NAME="umptieth">
<B>umptieth, </B>adjective. =umpteenth.</DL>
<A NAME="umpty">
<B>umpty, </B>adjective.<DL COMPACT><DD> (Informal.) of an indefinite number; many; umpteen. <BR> <I>Ex. umpty months, umpty times.</I> </DL>
<B>UMT</B> (no periods),<DL COMPACT><DD> Universal Military Training. </DL>
<A NAME="umts">
<B>UMTS</B> (no periods),<DL COMPACT><DD> Universal Military Training Service or System. </DL>
<A NAME="umw">
<B>UMW</B> (no periods) or <B>U.M.W.,</B><DL COMPACT><DD> United Mine Workers. </DL>
<A NAME="un">
<B>un, </B>noun, pronoun.<DL COMPACT><DD> (Dialect.) one. <BR> <I>Ex. "It [a rose] smells very sweet," he said; "those striped uns have no smell" (George Eliot).</I> </DL>
<A NAME="un">
<B>un-</B> (1),<DL COMPACT><DD> (prefix.) <DD><B> 1. </B>(with adjectives and adverbs.) not ______. <BR> <I>Ex. Unchanged = not changed. Unequal = not equal. Unjustly = not justly.</I> <DD><B> 2. </B>(with nouns.) the opposite of ______. <BR> <I>Ex. Uncooperation = the opposite of cooperation. Ungodliness = the opposite of godliness.</I> </DL>
<A NAME="un">
<B>un-</B> (2),<DL COMPACT><DD> (prefix with verbs.) to do the opposite of ______. <BR> <I>Ex. Unfasten = to do the opposite of fasten. Undress = to do the opposite of dress.</I> </DL>
<A NAME="un">
<B>UN</B> (no periods) or <B>U.N.,</B><DL COMPACT><DD> United Nations: <DD><B> a. </B>a worldwide organization established in 1945 and devoted to establishing world peace, to promoting economic and social welfare through special agencies, and to creating cultural understanding between nations. It has over 130 members. Its headquarters are in New York City. <DD><B> b. </B>the nations that belong to this organization. </DL>
<A NAME="unabashed">
<B>unabashed, </B>adjective.<DL COMPACT><DD> not embarrassed, ashamed, or awed; bold; open. <BR> <I>Ex. The unabashed nationalism of these aims has aroused the fiercest opposition (Harper's).</I> (SYN) forward. adv. <B>unabashedly.</B> </DL>
<A NAME="unabated">
<B>unabated, </B>adjective.<DL COMPACT><DD> not abated or lessened. </DL>
<A NAME="unable">
<B>unable, </B>adjective.<DL COMPACT><DD> not able; lacking ability or power (to). <BR> <I>Ex. A little baby is unable to walk or talk.</I> (SYN) incapable, unfit. </DL>
<A NAME="unabridged">
<B>unabridged, </B>adjective.<DL COMPACT><DD> not shortened or condensed; complete. <BR> <I>Ex. an unabridged book.</I> </DL>
<A NAME="unacademic">
<B>unacademic, </B>adjective.<DL COMPACT><DD> not academic; unconventional, as in literature or art. </DL>
<A NAME="unaccented">
<B>unaccented, </B>adjective.<DL COMPACT><DD> not pronounced with force; not accented; not stressed. In <I>unattended</I> the second and fourth syllables are unaccented. </DL>
<A NAME="unacceptable">
<B>unacceptable, </B>adjective.<DL COMPACT><DD> not acceptable; unsatisfactory; displeasing; not welcome. <BR> <I>Ex. All of the children had behavior problems severe enough to make them socially unacceptable. (Science News Letter).</I> noun <B>unacceptableness.</B> adv. <B>unacceptably.</B> </DL>
<A NAME="unaccommodated">
<B>unaccommodated, </B>adjective.<DL COMPACT><DD><B> 1. </B>not provided (with). <BR> <I>Ex. a few persons still unaccommodated with rooms for the night.</I> <DD><B> 2. </B>without accommodation or accommodations. <BR> <I>Ex. to leave no one unaccommodated.</I> </DL>
<A NAME="unaccommodating">
<B>unaccommodating, </B>adjective.<DL COMPACT><DD> not accommodating or obliging. <BR> <I>Ex. She even liked his rugged manners and his rough, unaccommodating speech (Lytton Strachey).</I> </DL>
<B>unaccountable, </B>adjective.<DL COMPACT><DD><B> 1. </B>that cannot be accounted for or explained; inexplicable. <BR> <I>Ex. He had an unaccountable foreboding that all was not right (Frederick Marryat).</I> (SYN) incomprehensible. <DD><B> 2. </B>that cannot be held to account; not responsible (for). <BR> <I>Ex. An insane person is unaccountable for his actions.</I> noun <B>unaccountableness.</B> </DL>
