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Lead sulphide; the principal ore of lead. It is of a bluish gray color and metallic luster, and is cubic in crystallization and cleavage. False galena. See Blende.

n which the bile, or gall, is stored up, as secreted by the liver; the cholecystis. See Illust. of Digestive apparatus. -- Gall duct, a duct which conveys bile, as the cystic duct, or the hepatic duct. -- Gall sickness, a remitting bilious fever in the Netherlands. Dunglison. -- Gall of the earth (Bot.), an herbaceo…

occasions galls, esp. any small hymenopteran of the genus Cynips and allied genera. See Illust. of Gall.

a viscid fluid into it; -- called also weeping sinew. Ganglion cell, a nerve cell. See Illust. under Bipolar.

The parasitic worm that causes the gapes in birds. See Illustration in Appendix.

ic), and conforming to the same general chemical formula. The commonest color is red, the luster is vitreous, and the hardness greater than that of quartz. The dodecahedron and trapezohedron are the common forms.

To boast; to brag; to bluster.

A great boaster; a blusterer.

ch leads into the cavity (the archenteron) lined by the inner wall (the hypoblast). See Illust. under Invagination. In a more general sense, an ideal stage in embryonic development. See Gastræa. -- a.

Goat-toothed; having a lickerish tooth; lustful; wanton. [Obs.]

An American machine gun, consisting of a cluster of barrels which, being revolved by a crank, are automatically loaded and fired.

lathe, an automatic lathe for turning a round object having an irregular profile, as a baluster or chair round, to a templet or gauge. -- Gauge point, the diameter of a cylinder whose altitude is one inch, and contents equal to that of a unit of a given measure; -- a term used in gauging casks, etc. -- Gauge rod, a…

s; -- called also algazel, corinne, korin, and kevel. The gazelles are celebrated for the luster and soft expression of their eyes. [Written also gazel.]

ring chain, an endless chain transmitted motion from one sprocket wheel to another. See Illust. of Chain wheel. -- Spur gearing, gearing in which the teeth or cogs are ranged round either the concave or the convex surface (properly the latter) of a cylindrical wheel; -- for transmitting motion between parallel shafts,…

A style of painting, sculpture, or other imitative art, which illustrates everyday life and manners.

lar four- or five-lobed corolla, usually blue, but sometimes white, yellow, or red. See Illust. of Capsule.

A lead-gray or grayish blue mineral with a metallic luster, consisting of sulphur, antimony, and lead, with a small proportion of arsenic.

Of, pertaining to, or illustrating, the revolutions of the earth; as, a geocyclic machine.

To accompany or illustrate with gesture or action; to gesticulate. It is not orderly read, nor gestured as beseemeth. Hooker.

A mineral occurring in greenish gray six-sided prisms, having a greasy luster. It is probably a pseudomorph after elæolite.