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A prefix in words from the Greek, denoting up, upward, throughout, backward, back, again, anew.

t of water, and of making their way on land for considerable distances, and for climbing trees; the climbing fishes.

Belonging to, or resembling, a family, or order, of plants of which the cashew tree is the type, and the species of sumac are well known examples.

A genus of plants including the cashew tree. See Cashew.

Pertaining to, after the manner of, or in the meter of, the Greek poet Anacreon; amatory and convivial. De Quincey.

Ascending rivers from the sea, at certain seasons, for breeding, as the salmon, shad, etc.

are called facultative anaërobia when able to live either in the presence or absence of free oxygen; obligate, or obligatory, anaërobia when they thrive only in its absence.

Not changed in form by inversion. Anallagmatic curves, a class of curves of the fourth degree which have certain peculiar relations to circles; -- sometimes called bicircular quartics. -- Anallagmatic surfaces, a certain class of surfaces of the fourth degree.

A resemblance of relations; an agreement or likeness between things in some circumstances or effects, when the things are otherwise entirely different. Thus, learning enlightens the mind, because it is to the mind what light is to the eye, enabling it to discover things before hidden.

A metrical foot consisting of three syllables, the first two short, or unaccented, the last long, or accented; the reverse of the dactyl. In Latin d, and in English in-ter-vene, are examples of anapests.

verging lens of equal and opposite astigmatism but different focal lengths, and sensibly free from astigmatism.

ved from, or possessed by, an ancestor or ancestors; as, an ancestral estate. "Ancestral trees." Hemans.

A small fish, about three inches in length, of the Herring family (Engraulis encrasicholus), caught in vast numbers in the Mediterranean, and pickled for exportation. The name is also applied to several allied species.

A West Indian fruit like the mango in taste, sometimes pickled; also, the tree (Grias cauliflora) bearing this fruit.

The olecranon, or the elbow. Ancon sheep (Zoöl.), a breed of sheep with short crooked legs and long back. It originated in Massachusetts in 1791; -- called also the otter breed.

A condition in the wood of some trees in which the rings are separated, as some suppose, by the action of high winds upon the trunk; wind shake.

The candied leaf stalks of angelica. Angelica tree, a thorny North American shrub (Aralia spinosa), called also Hercules' club.

A form of devotion in which three Ave Marias are repeated. It is said at morning, noon, and evening, at the sound of a bell.

0º (measured 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 o…

angle or angles; -- used in compounds; as, right- angled, many-angled, etc. The thrice three-angled beechnut shell. Bp. Hall.