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NH2, not yet obtained in a separate state, which may be regarded as ammonia from the molecule of which one of its hydrogen atoms has been removed; -- called also the amido group, and in composition represented by the form amido.

A peculiar small siliceous spicule having a denticulated wheel at each end; -- found in freshwater sponges.

Having the ovule inverted, but with the attachment near the middle of one side; half anatropous.

y of trap or basaltic rock, containing small cavities, occupied, wholly or in part, by nodules or geodes of different minerals, esp. agates, quartz, calcite, and the zeolites. When the imbedded minerals are detached or removed by decomposition, it is porous, like lava.

That part of the starch granule or granulose which is soluble in water.

Conformity of words to the genius, structure, or general rules of a language; similarity of origin, inflection, or principle of pronunciation, and the like, as opposed to pl. analogies. Johnson.

Pertaining to anarchy; without rule or government; in political confusion; tending to produce anarchy; as, anarchic despotism; anarchical opinions.

Having the ovule inverted at an early period in its development, so that the chalaza is as the apparent apex; -- opposed to orthotropous. Gray.

One of the anchor-shaped spicules of certain sponges; also, one of the calcareous spinules of certain Holothurians, as in species of Synapta. Anchor ice. See under Ice. -- Anchor ring. (Math.) Same as Annulus, 2 (b). -- Anchor stock (Naut.), the crossbar at the top of the shank at right angles to the arms. -- The an…

The lantern shown at night by a vessel at anchor. International rules of the road require vessels at anchor to carry from sunset to sunrise a single white light forward if under 150 feet in length, and if longer, two such lights, one near the stern and one forward.

An aged man; a patriarch. Hence: A governor; a ruler; a person of influence. The Lord will enter into judgment with the ancients of his people, and the princes thereof. Isa. iii. 14.

angelica. Angelica tree, a thorny North American shrub (Aralia spinosa), called also Hercules' club.

form a part of itself; as, the filbert covered by its husk, or the acorn seated in its cupule. Brande & C.

Of, pertaining to, or resembling, animalcules. "Animalcular life." Tyndall.

e theory which seeks to explain certain physiological and pathological by means of animalcules.

One versed in the knowledge of animalcules. Keith.

An animalcule.

- used appropriately of laws, decrees, edicts, decisions of courts, or other established rules, permanent usages, and the like, which are made void by component authority. Do they mean to annul laws of inestimable value to our liberties Burke.

An anomaly; a deviation from rule. Hooker.

Irregular; departing from common or established rules.