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ose; a stated quantity, as of food or drink; hence, a limited quantity of meat and drink, when provisions fall short. I can give the boy a handsome allowance. Thackeray.

ether; a mixture of metals; for example, brass, which is an alloy of copper and zinc. But when mercury is one of the metals, the compound is called an amalgam.

By alternation; when, in a proportion, the antecedent term is compared with antecedent, and consequent.

Either of two things or propositions offered to one's choice. Thus when two things offer a choice of one only, the two things are called alternatives. Having to choose between two alternatives, safety and war, you obstinately prefer the worse. Jowett (Thucyd. ).

ircle intercepted between such point and the horizon. It is either true or apparent; true when measured from the rational or real horizon, apparent when from the sensible or apparent horizon.

A species of Anthospermum, a shrub with evergreen leaves, which, when bruised, emit a fragrant odor.

ers, and meaning, So be it. At the end of a creed, it is a solemn asseveration of belief. When it introduces a declaration, it is equivalent to truly, verily. It is used as a noun, to demote: (a) concurrence in belief, or in a statement; assent; (b) the final word or act; (c) Christ as being one who is true and faithfu…

ss by which ammonia is formed, as that by which urea is converted into ammonium carbonate when urine is exposed to the air.

species, and all are extinct, the typical forms having existed only in the Mesozoic age, when they were exceedingly numerous. They differ from the nautili in having the margins of the septa very much lobed or plaited, and the siphuncle dorsal. Also called serpent stone, snake stone, and cornu Ammonis.…

Elevated, -- as a toe, when raised so high that the tip does not touch the ground.

em of electro-magnetic units, or the practical equivalent of the unvarying current which, when passed through a standard solution of nitrate of silver in water, deposits silver at the rate of 0.001118 grams per second. Called also the international ampère.

: at the setting, it is western, occiduous, or occasive. It is also northern or southern, when north or south of the equator.

ep thought; to absorb; also, to distract; to bewilder. [Obs.] Camillus set upon the Gauls when they were amused in receiving their gold. Holland. Being amused with grief, fear, and fright, he could not find the house. Fuller.

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.

Anaërobic bacteria. They are called facultative anaërobia when able to live either in the presence or absence of free oxygen; obligate, or obligatory, anaërobia when they thrive only in its absence.

Founded on, or of the nature of, analogy; expressing or implying analogy. When a country which has sent out colonies is termed the mother country, the expression is analogical. J. S. Mill.

. nalogous pole (Pyroelect.), that pole of a crystal which becomes positively electrified when heated.

e of relations; an agreement or likeness between things in some circumstances or effects, when the things are otherwise entirely different. Thus, learning enlightens the mind, because it is to the mind what light is to the eye, enabling it to discover things before hidden.

r monstrous projection or representation of an image on a plane or curved surface, which, when viewed from a certain point, or as reflected from a curved mirror or through a polyhedron, appears regular and in proportion; a deformation of an image.

crossbar at the top of the shank at right angles to the arms. -- The anchor comes home, when it drags over the bottom as the ship drifts. -- Foul anchor, the anchor when it hooks, or is entangled with, another anchor, or with a cable or wreck, or when the slack cable entangled. -- The anchor is acockbill, when it i…