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In hotels, aplan upon which guests pay for both room and board by the day, week, or other convenient period; -- contrasted with European plan.

A group of insects which do not undergo any metamorphosis. [Written also Ametabolia.]

Possessing sweetness of disposition; having sweetness of temper, kind-heartedness, etc., which causes one to be liked; as, an amiable woman.

after the manner of friends; peaceable; as, an amicable disposition, or arrangement. That which was most remarkable in this contest was . . . the amicable manner in which it was managed. Prideoux. Amicable action (Law.), an action commenced and prosecuted by amicable consent of the parties, for the purpose of obtaining…

union of amidogen with an acid element or radical. It may also be regarded as ammonia in which one or more hydrogen atoms have been replaced by an acid atom or radical. Acid amide, a neutral compound formed by the substitution of the amido group for hydroxyl in an acid.

Containing, or derived from, amidogen. Amido acid, an acid in which a portion of the nonacid hydrogen has been replaced by the amido group. The amido acids are both basic and acid. -- Amido group, amidogen, NH2.

A compound radical, 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.

An order of ganoid fishes of which Amis is type. See Bowfin and Ganoidei.

Cell division in which there is first a simple cleavage of the nucleus without change in its structure (such as the formation of chromosomes), followed by the division of the cytoplasm; direct cell division; -- opposed to mitosis. It is not the usual mode of division, and is believed by many to occur chiefly in highly…

ing its properties; as, an ammoniac salt; ammoniacal gas. Ammoniacal engine, an engine in which the vapor of ammonia is used as the motive force. -- Sal ammoniac Etym: [L. sal ammoniacus], the salt usually called chloride of ammonium, and formerly muriate of ammonia.

the Dorema ammoniacum. It is brought chiefly from Persia in the form of yellowish tears, which occur singly, or are aggregated into masses. It has a peculiar smell, and a nauseous, sweet taste, followed by a bitter one. It is inflammable, partially soluble in water and in spirit of wine, and is used in medicine as an…

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

Forgetfulness; also, a defect of speech, from cerebral disease, in which the patient substitutes wrong words or names in the place of those he wishes to employ. Quian.

That group of vertebrates which develops in its embryonic life the envelope called the amnion. It comprises the reptiles, the birds, and the mammals.

A poem in which persons are represented at speaking alternately; as the third and seventh eclogues of Virgil.

That division of the Rhizopoda which includes the amoeba and similar forms.

A genus of aromatic plants. It includes species which bear cardamoms, and grains of paradise.

The act or right of alienating lands to a corporation, which was considered formerly as transferring them to dead hands, or in mortmain.

S. system 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.

A form of articulation in which the bones are connected by intervening substance admitting slight motion; symphysis.