GECKO n.
tly nocturnal animals with large eyes and vertical, elliptical pupils. Their toes are generally expanded, and furnished with adhesive disks, by which they can run over walls and ceilings. They are numerous in warm countries, and a few species are found in Europe and the United States. See Wall gecko, Fanfoot.…
GLUCINUM n.
er white color, and low specific gravity (2.1), resembling magnesium. It never occurs naturally in the free state, but is always combined, usually with silica or alumina, or both; as in the minerals phenacite, chrysoberyl, beryl or emerald, euclase, and danalite. It was named from its oxide glucina, which was known lon…
GLYCOLIC a.
col; as, glycolic ether; glycolic acid. Glycolic acid (Chem.), an organic acid, found naturally in unripe grapes and in the leaves of the wild grape (Ampelopsis quinquefolia), and produced artificially in many ways, as by the oxidation of glycol, -- whence its name. It is a sirupy, or white crystalline, substance, HO.C…
GOTHIC a.
ith pointed arches, steep roofs, windows large in proportion to the wall spaces, and, generally, great height in proportion to the other dimensions -- prevalent in Western Europe from about 1200 to 1475 a. d. See Illust. of Abacus, and Capital.