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h, and from which it turns again toward the equator, the northern circle being called the Tropic of Cancer, and the southern the Tropic of Capricorn, from the names of the two signs at which they touch the ecliptic.

Of or pertaining to the tropics; characteristic of, or incident to, the tropics; being within the tropics; as, tropical climate; tropical latitudes; tropical heat; tropical diseases.

In a tropical manner; figuratively; metaphorically.

Exhibiting differences of quality or property in different directions; not isotropic. Sir W. Thomson.

Of or pertaining to allotropism. -- Al`lo*trop"ic*al*ly, adv. Allotropic state, the several conditions which occur in a case of allotropism.

Allotropic property or nature.

Not isotropic; having different properties in different directions; thus, crystals of the isometric system are optically isotropic, but all other crystals are anisotropic.

Turning away from the sun; -- said of leaves, etc. Darwin.

Bending away from the ground; -- said of leaves, etc. Darwin.

Relating to, or exhibiting, diageotropism.

Relating or, or manifesting, diaheliotropism.

Pertaining to, or characterized by, emmetropia. The normal or emmetropic eye adjusts itself perfectly for all distances. J. Le Conte.

Beyond or outside of the tropics. Whewell.

Relating to, or showing, geotropism.

Manifesting heliotropism; turning toward the sun.

Turning or bending towards moisture, as roots.

Situated between or within the tropics. J. Morse.

Within the tropics.

Pertaining to, or designating, an acid obtained from atropine, and isomeric with cinnamic acid.

Having equal entropy. Isentropic lines, lines which pass through points having equal entropy.