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A mineral now called Wernerite.

ARM, n. [Sax. arm, earm; D.G. Sw. Dan. arm; L. armus, an arm, a shoulder, a wing. In Russ. a shoulder is ramo, which may be the same word as the L. armus. If so, this word belongs to the root Rm coinciding with L. ramus, a branch, that is, a shoot, like the Celtic braich, L. brachium. But if the L. armus is directly from the Gr. ἁρμος, a joint, it would seem to be formed from Gr. αρω, to fit.]

  1. The limb of the human body, which extends from the shoulder to the hand.
  2. The branch of a tree, or the slender part of a machine, projecting from a trunk or axis. The limbs of animals are also sometimes called arms.
  3. A narrow inlet of water from the sea.
  4. Figuratively, power, might, strength; as, the secular arm. In this sense the word is often used in the Scriptures. To whom is the arm of the Lord revealed? Isa. liii.

ARM, v.i.

To provide with arms, weapons, or means of attack or resistance; to take arms; as, the nations arm for war. This verb is not really intransitive in this use, but reciprocal, the pronoun being omitted. The nations arm – for, the nations arm themselves.

ARM, v.t. [L. armo; Fr. armer; Sp. armar; It. armare; from L. arma.]

  1. To furnish or equip with weapons of offense, or defense; as, to arm the militia.
  2. To cover with a plate, or with whatever will add strength, force, or security; as, to arm the hilt of a sword.
  3. To furnish with means of defense; to prepare for resistance; to fortify. Arm yourselves with the same mind. 1 Pet. iv.

AR-MA'DA, n. [Sp. from arma.]

A fleet of armed ships a squadron. The term is usually applied to the Spanish fleet, called the Invincible Armada, consisting of 130 ships intended to act against England, in the reign of Queen Elizabeth, A. D. 1588.

AR-MA-DIL'LO, n. [Sp.; so called from being armed with a bony shell.]

A quadruped peculiar to America, called also tatoo, and in zoology, the dasypus. This animal has neither fore-teeth, nor dog-teeth; it is covered with a hard, bony shell, divided into movable belts, except on the forehead, shoulders and haunches, where it is not movable. The belts are connected by a membrane, which enables the animal to roll itself up like a hedgehog. These animals burrow in the earth, where they lie during the day-time, seldom going abroad except at night. They are of different sizes; the largest 3 feet in length, without the tail. They subsist chiefly on fruits and roots; sometimes on insects and flesh. When attacked, they roll themselves into a ball, presenting their armor on all sides to any assailant; but they are inoffensive, and their flesh is esteemed good food. – Encyc.

ARM'A-MENT, n. [L. armamenta, utensils, tackle, from arma.]

A body of forces equipped for war; used of a land or naval force. It is more generally used of a naval force, including ships, men, and all the necessary furniture for war.


An armory; a magazine or arsenal. [Rarely used.]

ARM'A-TURE, n. [L. armatura.]

  1. Armor; that which defends the body. It comprehends whatever is worn for defense of the body, and has been sometimes used for offensive weapons. Armature, like arms and armor, is used also of the furniture of animals and vegetables, evidently intended for their protection; as, prickles, spines and horns.
  2. In ancient military art, exercise performed with missive weapons, as darts, spears and arrows. – Encyc.


A chair with arms.

ARM'ED, a.

In botany, having prickles or thorns.

ARM'ED, pp.

  1. Furnished with weapons of offense or defense; furnished with the means of security; fortified, in a moral sense.
  2. In heraldry, armed is when the beaks, talons, horns, or teeth of beasts and birds of prey are of a different color from the rest of the body. – Chambers.
  3. Capped and cased, as the lode-stone; that is, set in iron. An armed ship is one which is taken into the service of government for a particular occasion, and armed like a ship of war. Armed in flute. A ship is armed in flute when she carries fewer guns than she appears to carry; that is, some real guns and some wooden ones, or when she shows only a part of her guns.


A chair with arms to support the elbows.


Pertaining to Armenia; a country, and formerly a kingdom in Asia, divided into Major and Minor. The greater Armenia is now called Turcomania.


A native of Armenia, or the language of the country. – Sir W. Jones. Armenian bole is a species of clay from Armenia, and found in other countries. But the term, being of uncertain signification, is rejected in modern mineralogy. [See Bole.] – Cronstedt. Kirwan. Armenian stone, a soft blue stone, consisting of calcarious earth or gypsum, with the oxyd of copper. It is too soft to give fire with steel, loses its color when heated, and does not admit of a polish. – Nicholson.

AR-MENT'AL, or AR-MENT'INE, a. [L. armentalis.]

Belonging to a drove or herd of cattle.

ARME-PU'IS-SANT, a. [See Puissant.]

Powerful in arms. – Weever.


As much as the arms can bold.


Slender, as the arm. [Not in use.] – Shak.

ARM'HOLE, n. [arm and hole.]

  1. The cavity under the shoulder, or the armpit. – Bacon.
  2. A hole for the arm in a garment.

ARM'I-GER, n. [L. One that bears arms.]

A knight or esquire, a knight's companion.

AR-MIG'ER-OUS, a. [L. armiger; arma and gero.]

Literally, bearing arms. But in present usage, armiger is a title of dignity next in degree to a knight. In times of chivalry, it signified an attendant on a knight, or other person of rank, who bore his shield and rendered him other military services. So in antiquity, Abimelech, Saul, &c. had their armor-bearers, Judg. ix. 1 Sam. xvi. As had Hector and Achilles. Homer. This title, under the French princes, in England, was exchanged, in common usage, for esquire, Fr. ecuyer, a word of similar import, from ecu, L. scutum, a shield. Armiger is still retained with us, as a title of respect, being the Latin word equivalent to esquire, which see. – Spelman.

ARM'IL-LA-RY, a. [L. armilla, a bracelet, from armus, the arm.]

Resembling a bracelet, or ring; consisting of rings or circles. It is chiefly applied to an artificial sphere, composed of a number of circles of the mundane sphere, put together in their natural order, to assist in giving a just conception of the constitution of the heavens, and the motions of the celestial bodies. This artificial sphere revolves upon its axis within a horizon, divided into degrees, and movable every way upon a brass supporter. – Encyc.


Furnished with bracelets.

ARM'ING, ppr.

Equipping with arms; providing with the means of defense or attack; also, preparing for resistance in a moral sense.