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Vascular tissue of plants, consisting of spiral vessels, dotted, barred, and pitted ducts, and laticiferous vessels.

An instrument for examining the capillary vessels of animals and plants. Morin.

A plant which has its seeds inclosed in a pericarp.

by a quarter circle). -- Solid angle, the figure formed by the meeting of three or more plane angles at one point. -- Spherical angle, one made by the meeting of two arcs of great circles, which mutually cut one another on the surface of a globe or sphere. -- Visual angle, the angle formed by two rays of light, or…

A tropical plant (Cajanus indicus) and its edible seed, a kind of pulse; -- so called from Angola in Western Africa. Called also pigeon pea and Congo pea.

ance. -- Angular motion, the motion of a body about a fixed point or fixed axis, as of a planet or pendulum. It is equal to the angle passed over at the point or axis by a line drawn to the body. -- Angular point, the point at which the sides of the angle meet; the vertex. -- Angular velocity, the ratio of anuglar m…

A West Indian plant (Indigofera anil), one of the original sources of indigo; also, the indigo dye.

An umbelliferous plant (Pimpinella anisum) growing naturally in Egypt, and cultivated in Spain, Malta, etc., for its carminative and aromatic seeds.

A note, added by way of comment, or explanation; -- usually in the plural; as, annotations on ancient authors, or on a word or a passage.

ng only one year or one growing season; requiring to be renewed every year; as, an annual plant; annual tickets. Bacon.

The solid formed by a circle revolving around a line which is the plane of the circle but does not cut it.

Pertaining to the anomaly, or angular distance of a planet from its perihelion. Anomalistic month. See under Month. -- Anomalistic revolution, the period in which a planet or satellite goes through the complete cycles of its changes of anomaly, or from any point in its elliptic orbit to the same again. -- Anomalistic…

The angular distance of a planet from its perihelion, as seen from the sun. This is the true anomaly. The eccentric anomaly is a corresponding angle at the center of the elliptic orbit of the planet. The mean anomaly is what the anomaly would be if the planet's angular motion were uniform.

A genus of tropical or subtropical plants of the natural order Anonaceæ, including the soursop.

Pertaining to the order of plants including the soursop, custard apple, etc.

A moss or mosslike plant which cellular stems, having usually an upward growth and distinct leaves.

To respond to satisfactorily; to meet successfully by way of explanation, argument, or justification, and the like; to refute. No man was able to answer him a word. Matt. xxii. 46. These shifts refuted, answer thine appellant. Milton. The reasoning was not and could not be answered. Macaulay.

Various kinds of plant lice or aphids tended by ants for the sake of the honeydew which they secrete. See Aphips.

An apparent motion of a planet toward the west; retrogradation.

Chamomile; a genus of composite, herbaceous plants.