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Armed with prickles, as a plant.

Of, pertaining to, or resembling, the plant acanthus.

A genus of herbaceous prickly plants, found in the south of Europe, Asia Minor, and India; bear's-breech.

cken the natural or ordinary progression or process of; as, to accelerate the growth of a plant, the increase of wealth, etc.

ifty-six seconds of solar time earlier than on the day preceding. -- Acceleration of the planets, the increasing velocity of their motion, in proceeding from the apogee to the perigee of their orbits.

ch a right line, drawn from the eye, parallel to a given right line, cuts the perspective plane; so called to distinguish it from the principal point, or point of view, where a line drawn from the eye perpendicular to the perspective plane meets this plane. -- Accidental lights (Paint.), secondary lights; effects of l…

the peculiarities of a foreign or strange climate; said of man, the inferior animals, or plants.

side to side; to border; hence, to sail along the coast or side of. [Obs.] "So much [of Lapland] as accosts the sea." Fuller.

A statement in general of reasons, causes, grounds, etc., explanatory of some event; as, no satisfactory account has been given of these phenomena. Hence, the word is often used simply for reason, ground, consideration, motive, etc.; as, on no account, on every account, on all accounts.

Used in salads; as, acetarious plants.

A name given to several species of plants; as, smallage, wild celery, parsley. [Obs.] Holland.

One of the needlelike or bristlelike spines or prickles of some animals and plants; also, a needlelike crystal.

The herb wolfsbane, or monkshood; -- applied to any plant of the genus Aconitum (tribe Hellebore), all the species of which are poisonous.

A plant which has no cotyledons, as the dodder and all flowerless plants.

Having no seed lobes, as the dodder; also applied to plants which have no true seeds, as ferns, mosses, etc.

e quality of being acrid or pungent; irritant bitterness; acrimony; as, the acridity of a plant, of a speech.

roys others; also, a harsh or biting sharpness; as, the acrimony of the juices of certain plants. [Archaic] Bacon.

A plant of the highest class of cryptograms, including the ferns, etc. See Cryptogamia. The Age of Acrogens (Geol.), the age of coal plants, or the carboniferous era.

Increasing by growth from the extremity; as, an acrogenous plant.

or real existence as opposed to a possibility or possible existence. [Obs.] The seeds of plants are not at first in act, but in possibility, what they afterward grow to be. Hooker.