| Gla | A carboxylated form of glutamic acid found in certain proteins (e.g., prothrombin, factors VII, IX, and X, osteocalcin). Its synthesis is vitamin K-dependent. (05 Mar 2000) |
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| glabella | Origin: NL, fr. L. Glabellus hairless, fr. Glaber bald. <anatomy> The space between the eyebrows, also including the corresponding part of the frontal bone; the mesophryon. Glabel"lar. Source: Websters Dictionary (01 Mar 1998) |
| glabellad | Toward the glabella. (05 Mar 2000) |
| glabellum | Origin: NL. See Glabella. <zoology> The median, convex lobe of the head of a trilobite. See Trilobite. Source: Websters Dictionary (01 Mar 1998) |
| glabrate | <botany> Becoming smooth or glabrous from age. Origin: L. Glabrare, fr. Glaber smooth. Source: Websters Dictionary (01 Mar 1998) |
| glabrescent | Becoming glabrous (without hairs). (09 Oct 1997) |
| glabrous | Without hairs. (09 Oct 1997) |
| glabrous skin | Skin that is normally devoid of hair. (05 Mar 2000) |
| glacial | 1. Pertaining to ice or to its action; consisting of ice; frozen; icy; especially, pertaining to glaciers; as, glacial phenomena. 2. <chemistry> Resembling ice; having the appearance and consistency of ice; said of certain solid compounds; as, glacial phosphoric or acetic acids. <chemistry> Glacial acid See Glacier theory, under Glacier. Origin: L. Glacialis, from glacies ice: cf. F. Glacial. Source: Websters Dictionary (01 Mar 1998) |
| glacial phosphoric acid | An anhydride of phosphoric acid used as a reagent, and in the manufacture of zinc oxyphosphate cement for dentistry. Synonym: metaphosphoric acid. (05 Mar 2000) |
| glacialist | One who attributes the phenomena of the drift, in geology, to glaciers. Source: Websters Dictionary (01 Mar 1998) |
| glaciate | 1. To convert into, or cover with, ice. 2. <geology> To produce glacial effects upon, as in the scoring of rocks, transportation of loose material, etc. Glaciated rocks, rocks whose surfaces have been smoothed, furrowed, or striated, by the action of ice. Source: Websters Dictionary (01 Mar 1998) |
| glacier | An immense field or stream of ice, formed in the region of perpetual snow, and moving slowly down a mountain slope or valley, as in the Alps, or over an extended area, as in Greenland. The mass of compacted snow forming the upper part of a glacier is called the firn, or neve; the glacier proper consist of solid ice, deeply crevassed where broken up by irregularities in the slope or direction of its path. A glacier usually carries with it accumulations of stones and dirt called moraines, which are designated, according to their position, as lateral, medial, or terminal (see Moraine). The common rate of flow of the Alpine glaciers is from ten to twenty inches per day in summer, and about half that in winter. <geology> Glacier theory, the theory that large parts of the frigid and temperate zones were covered with ice during the glacial, or ice, period, and that, by the agency of this ice, the loose materials on the earth's surface, called drift or diluvium, were transported and accumulated. Origin: F. Glacier, fr. Glace ice, L. Glacies. Source: Websters Dictionary (01 Mar 1998) |
| glad | To make glad; to cheer; to gladden; to exhilarate. "That which gladded all the warrior train." (Dryden) "Each drinks the juice that glads the heart of man." (Pope) Origin: AS. Gladian. See Glad, and cf. Gladden. 1. Pleased; joyous; happy; cheerful; gratified; opposed to sorry, sorrowful, or unhappy; said of persons, and often followed by of, at, that, or by the infinitive, and sometimes by with, introducing the cause or reason. "A wise son maketh a glad father." (Prov. X. 1) "He that is glad at calamities shall not be unpunished." (Prov. Xvii. 5) "The Trojan, glad with sight of hostile blood." (Dryden) "He, glad of her attention gained." (Milton) "As we are now glad to behold your eyes." (Shak) "Glad am I that your highness is so armed." (Shak) Glad on 't, glad of it. 2. Wearing a gay or bright appearance; expressing or exciting joy; producing gladness; exhilarating. "Her conversation More glad to me than to a miser money is." (Sir P. Sidney) "Glad evening and glad morn crowned the fourth day." (Milton) Synonym: Pleased, gratified, exhilarated, animated, delighted, happy, cheerful, joyous, joyful, cheering, exhilarating, pleasing, animating. Glad, Delighted, Gratified. Delighted expresses a much higher degree of pleasure than glad. Gratified always refers to a pleasure conferred by some human agent, and the feeling is modified by the consideration that we owe it in part to another. A person may be glad or delighted to see a friend, and gratified at the attention shown by his visits. Origin: AS. Glaed bright, glad; akin to D. Glad smooth, G. Glatt, OHG. Glat smooth, shining, Icel. Glar glad, bright, Dan. & Sw. Glad glad, Lith. Glodas smooth, and prob. To L. Glaber, and E. Glide. Cf. Glabrous. Source: Websters Dictionary (01 Mar 1998) |
| glade | Open space surrounded by woods or a forest, a marshy and usually low-lying area, a periodically inundated grassy marsh often running between adjacent slopes, a marshy area bounding or forming the headwaters of a stream. (09 Oct 1997) |