GLOBIGERINA n.
A genus of small Foraminifera, which live abundantly at or near the surface of the sea. Their dead shells, falling to the bottom, make up a large part of the soft mud, generally found in depths below 3,000 feet, and called globigerina ooze. See Illust. of Foraminifera.
GLUCOSE n.
A variety of sugar occurring in nature very abundantly, as in ripe grapes, and in honey, and produced in great quantities from starch, etc., by the action of heat and acids. It is only about half as sweet as cane sugar. Called also dextrose, grape sugar, diabetic sugar, and starch sugar. See Dextrose.…
HYDROGEN n.
s use in filling balloons), and over eleven thousand times lighter than water. It is very abundant, being an ingredient of water and of many other substances, especially those of animal or vegetable origin. It may by produced in many ways, but is chiefly obtained by the action of acids (as sulphuric) on metals, as zinc…
ICE n.
ier glacé. -- Ice petrel (Zoöl.), a shearwater (Puffinus gelidus) of the Antarctic seas, abundant among floating ice. -- Ice pick, a sharp instrument for breaking ice into small pieces. -- Ice pilot, a pilot who has charge of a vessel where the course is obstructed by ice, as in polar seas; -- called also ice master…
IMPERFECT a.
ral divisors; in the former case, it is called also a defective number; in the latter, an abundant number. -- Imperfect obligations (Law), obligations as of charity or gratitude, which cannot be enforced by law. -- Imperfect power (Math.), a number which can not be produced by taking any whole number or vulgar fracti…
JEWISH CALENDAR n.
f the 299th lunar cycle. The common year is said to be defective, regular, or perfect (or abundant) according as it has 353, 354, or 355 days. The leap year has an intercalary month, and a total of 383 (defective), 384 (regular), or 385 (perfect, or abundant) days. The calendar is complicated by various rules providing…
JUREL n.
A yellow carangoid fish of the Atlantic and Gulf coasts (Caranx chrysos), most abundant southward, where it is valued as a food fish; -- called also hardtail, horse crevallé, jack, buffalo jack, skipjack, yellow mackerel, and sometimes, improperly, horse mackerel. Other species of Caranx (as C. fallax) are also sometim…