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One of the solid parts of a battlemented parapet; a battlement. See Illust. of Battlement.

The median vertical plate, or median element, of the ethmoid bone.

Sirs; gentlemen; -- abbreviated to Messrs., which is used as the plural of Mr.

An elementary substance, as sodium, calcium, or copper, whose oxide or hydroxide has basic rather than acid properties, as contrasted with the nonmetals, or metalloids. No sharp line can be drawn between the metals and nonmetals, and certain elements partake of both acid and basic qualities, as chromium, manganese, bis…

Now, one of several elementary substances which in the free state are unlike metals, and whose compounds possess or produce acid, rather than basic, properties; a nonmetal; as, boron, carbon, phosphorus, nitrogen, oxygen, sulphur, chlorine, bromine, etc., are metalloids.

Pertaining to, or denoting, any one of a series of compounds of certain metallic elements with organic radicals; as, zinc methyl, sodium ethyl, etc. [Written also metallorganic.]

Having the same elements united in the same proportion by weight, and with the same molecular weight, but possessing a different structure and different properties; as, methyl ether and ethyl alcohol are metameric compounds. See Isomeric.

phy; psychology. Metaphysics, in whatever latitude the term be taken, is a science or complement of sciences exclusively occupied with mind. Sir W. Hamilton. Whether, after all, A larger metaphysics might not help Our physics. Mrs. Browning.

The most posterior element of the sternum; the ensiform process; xiphisternum.

The assimilation by one body or organism of the elements of another.

A binary compound of methyl with some element; as, aluminium methide, Al2(CH3)6.

. A certain critical hour which shall... try what mettle his heart is made of. South. Gentlemen of brave mettle. Shak. The winged courser, like a generous horse, Shows most true mettle when you check his course. Pope. To put one one's mettle, to cause or incite one to use one's best efforts.

e, or of the hydrogen atom, taken as the standard in comparing the atomic weights of the elements; thus, an atom of oxygen weighs sixteen microcriths. See Crith. J. P. Cooke.

One of the elementary granules found in blood. They are much smaller than an ordinary corpuscle, and are particularly noticeable in disease, as in anæmia.

Gentle; pleasant; kind; soft; bland; clement; hence, moderate in degree or quality; -- the opposite of harsh, severe, irritating, violent, disagreeable, etc.; -- applied to persons and things; as, a mild disposition; a mild eye; a mild air; a mild medicine; a mild insanity. The rosy morn resigns her light And milder gl…

The process of mineralizing, or forming a mineral by combination of a metal with another element; also, the process of converting into a mineral, as a bone or a plant.

An element which is combined with a metal, thus forming an ore. Thus, in galena, or lead ore, sulphur is a mineralizer; in hematite, oxygen is a mineralizer.

rogn; a rabble; esp., an unlawful or riotous assembly; a disorderly crowd. The mob of gentlemen who wrote with ease. Pope. Had every Athenian citizen been a Socrates, every Athenian assembly would still have been a mob. Madison. Confused by brainless mobs. Tennyson. Mob law, law administered by the mob; lynch law. --…

A spot; a defilement. The moil of death upon them. Mrs. Browning.

An agricultural implement used in Flanders, consisting of a kind of large shovel drawn by a horse and guided by a man. [Written also mollebært and mouldebært.] Simmonds.