<B>hyperthyroid, </B>noun, adjective.<DL COMPACT><DD><I>noun </I> <B>1. </B>an excessively active thyroid gland. <DD><B> 2. </B>a person having such a gland. <DD><I>adj. </I> having to do with hyperthyroidism. </DL>
<A NAME="hyperthyroidism">
<B>hyperthyroidism, </B>noun.<DL COMPACT><DD><B> 1. </B>excessive activity of the thyroid gland. <DD><B> 2. </B>the abnormal condition resulting from this, characterized by a high metabolic rate, nervousness, and often an enlargement of the thyroid gland. </DL>
<A NAME="hypertonic">
<B>hypertonic, </B>adjective.<DL COMPACT><DD><B> 1. </B>having excessive muscular tone or tension in response to stimuli. <DD><B> 2. </B>(of a solution) having a higher osmotic pressure than an isotonic solution. </DL>
<B>hypertrophy, </B>noun, pl. <B>-phies,</B> verb, <B>-phied,</B> <B>-phying.</B><DL COMPACT><DD><I>noun </I> an enlargement of a part or organ due to a diseased condition or overuse of the organ. <DD><I>v.t., v.i. </I> to grow too big; affect or be affected with hypertrophy. </DL>
<A NAME="hypervariableminisatellite">
<B>hypervariable minisatellite,</B><DL COMPACT><DD> any of a class of short segments of satellite DNA, containing repeating sequences of base pairs whose number varies from individual to individual. <BR> <I>Ex. Since hypervariable minisatellites are completely specific to an individual, they provide a powerful tool for paternity testing.</I> </DL>
<A NAME="hypervelocity">
<B>hypervelocity, </B>noun, pl. <B>-ties.</B><DL COMPACT><DD> extremely high velocity, such as that of spacecraft or of nuclear particles. </DL>
<A NAME="hyperventilate">
<B>hyperventilate, </B>verb, <B>-lated,</B> <B>-lating.</B><DL COMPACT><DD><I>v.i. </I> to breathe deeply or excessively. <BR> <I>Ex. Preparing for a dive, the ama hyperventilates for five to 10 seconds, takes a final deep breath and then makes the plunge (Scientific American).</I> <DD><I>v.t. </I> to increase the amount of oxygen in (the lungs) by excessive or forced respiration. </DL>
<A NAME="hyperventilation">
<B>hyperventilation, </B>noun.<DL COMPACT><DD> excessive or forced respiration, causing a lowering of the normal amount of carbon dioxide in the blood. </DL>
<A NAME="hyperverbal">
<B>hyperverbal, </B>adjective.<DL COMPACT><DD> excessively verbal. <BR> <I>Ex. He is hyperverbal and is given to self-lacerating bitter tirades (Pauline Kael).</I> </DL>
<A NAME="hypervitaminosis">
<B>hypervitaminosis, </B>noun.<DL COMPACT><DD> a condition caused by an excess of vitamins. </DL>
<A NAME="hypesthesia">
<B>hypesthesia, </B>noun.<DL COMPACT><DD> diminished capacity for sensation; dulled sensitiveness. </DL>
<A NAME="hypesthesic">
<B>hypesthesic, </B>adjective.<DL COMPACT><DD> of or characterized by hypesthesia. </DL>
<B>hypha, </B>noun, pl. <B>-phae.</B><DL COMPACT><DD> (Botany.) the structural element of the plant body of fungi, consisting of long, slender, branched filaments, usually having dividing membranes, and together constituting the mycelium. </DL>
<A NAME="hyphal">
<B>hyphal, </B>adjective.<DL COMPACT><DD> of or having to do with the hypha of a fungus. </DL>
<A NAME="hyphen">
<B>hyphen, </B>noun, verb.<DL COMPACT><DD><I>noun </I> a mark used to connect the parts of a compound word, or the parts of a word divided at the end of a line. The hyphen comes in the middle of the line between the top and the bottom of an m or other letter like it. <DD><I>v.t. </I> <B>=hyphenate.</B> </DL>
<A NAME="hyphenate">
<B>hyphenate, </B>verb, <B>-ated,</B> <B>-ating,</B> adjective, noun.<DL COMPACT><DD><I>v.t. </I> to join by a hyphen; write or print with a hyphen. <DD><I>adj. </I> <B>=hyphenated.</B> <DD><I>noun </I> (U.S.) <B>1. </B>a hyphenated citizen. <DD><B> 2. </B>(Informal.) a person who has more than one job or fills more than one position, especially in the creative arts. <BR> <I>Ex. He [Robert Redford] is the most recent and successful example of a burgeoning new Hollywood hyphenate, the actor-producer (Mel Gussow).</I> </DL>
<A NAME="hyphenated">
<B>hyphenated, </B>adjective.<DL COMPACT><DD> (U.S.) of or having to do with persons, or their activities, whose national origin is indicated by a hyphenated form, such as Anglo-American or Irish-American. </DL>
<A NAME="hyphenation">
<B>hyphenation, </B>noun.<DL COMPACT><DD> the act of joining by a hyphen; writing or printing with a hyphen. </DL>
<A NAME="hyphenism">
<B>hyphenism, </B>noun.<DL COMPACT><DD> (U.S.) the spirit or practices of hyphenates. </DL>
<B>hyphenless, </B>adjective.<DL COMPACT><DD> without a hyphen. </DL>
<A NAME="hypn">
<B>hypn-,</B><DL COMPACT><DD> (combining form.) the form of <B>hypno-</B> before vowels, as in <I>hypnosis.</I> </DL>
<A NAME="hypnagogic">
<B>hypnagogic, </B>adjective.<DL COMPACT><DD><B> 1. </B>inducing sleep; hypnic. <DD><B> 2. </B>(Psychology.) happening while falling asleep; having to do with drowsiness or the coming on of sleep, when the brain has difficulty separating reality from subconscious images. <BR> <I>Ex. a hypnagogic illusion or hallucination.</I> <DD> Also, <B>hypnogogic.</B> </DL>
<A NAME="hypnagogue">
<B>hypnagogue, </B>noun.<DL COMPACT><DD> something that induces sleep; a hypnotic. </DL>
<B>hypnoidal, </B>adjective.<DL COMPACT><DD><B> 1. </B><B>=hypnoid.</B> <DD><B> 2. </B>(Psychology.) designating a state similar to that of mild hypnosis. </DL>
<A NAME="hypnologic">
<B>hypnologic, </B>adjective.<DL COMPACT><DD> of or having to do with hypnology. </DL>
<B>hypnology, </B>noun.<DL COMPACT><DD> science dealing with phenomena of sleep. noun <B>hypnologist.</B> </DL>
<A NAME="hypnopedia">
<B>hypnopedia, </B>noun.<DL COMPACT><DD> the act or process of teaching oneself or someone else while asleep, usually by means of a record or tape recording; sleep-learning. Repetition of a lesson is supposed to implant information in the sleeper's subconscious. <BR> <I>Ex. ... hypnopedia is not a teaching method in itself, but only an important supplementary aid (New Scientist).</I> </DL>
<A NAME="hypnopedic">
<B>hypnopedic, </B>adjective.<DL COMPACT><DD> of or having to do with hypnopedia. adv. <B>hypnopedically.</B> </DL>
<A NAME="hypnophobia">
<B>hypnophobia, </B>noun.<DL COMPACT><DD> an abnormal fear of falling asleep. </DL>
<A NAME="hypnopompic">
<B>hypnopompic, </B>adjective.<DL COMPACT><DD> (Psychology.) happening while waking up; having to do with the state or moment of coming out of sleep, when a subconscious image or dream persists. <BR> <I>Ex. a hypnopompic illusion or hallucination.</I> </DL>
<A NAME="hypnos">
<B>Hypnos, </B>noun.<DL COMPACT><DD> the Greek god of sleep. </DL>
<A NAME="hypnosis">
<B>hypnosis, </B>noun, pl. <B>-ses.</B><DL COMPACT><DD><B> 1. </B>a condition somewhat resembling deep sleep, but more active, in which a person has little will of his own, and acts according to the suggestions of the person who brought about the condition. <DD><B> 2. </B><B>=hypnotism </B>(def. 3). </DL>
<A NAME="hypnosophy">
<B>hypnosophy, </B>noun.<DL COMPACT><DD> knowledge or the science of the phenomena of sleep. noun <B>hypnosophist.</B> </DL>
<A NAME="hypnotherapy">
<B>hypnotherapy, </B>noun.<DL COMPACT><DD> the treatment of physical or mental disorders by means of hypnotism, or the use of hypnotism as a substitute for anesthetics. noun <B>hypnotherapist.</B> </DL>
<A NAME="hypnotic">
<B>hypnotic, </B>adjective, noun.<DL COMPACT><DD><I>adj. </I> <B>1. </B>having to do with hypnosis or hypnotism. <DD><B> 2. </B>easily hypnotized. <DD><B> 3. </B>in a hypnotized state. <DD><B> 4. </B>causing or tending to cause hypnosis. <BR> <I>Ex. a hypnotic stare.</I> <DD><I>noun </I> <B>1. </B>a drug or other means of causing sleep; sedative; soporific. <DD><B> 2. </B>a person who is hypnotized or who is easily hypnotized. adv. <B>hypnotically.</B> </DL>
<B>hypnotism, </B>noun.<DL COMPACT><DD><B> 1. </B>the act or process of putting into a sleeplike state; hypnotizing. <DD><B> 2. </B>the science dealing with hypnosis. <DD><B> 3. </B>a hypnotic condition. </DL>
<A NAME="hypnotist">
<B>hypnotist, </B>noun.<DL COMPACT><DD> a person who hypnotizes. </DL>
