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A prefix, meaning upon, beside, among, on the outside, above, over. It becomes ep- before a vowel, as in epoch, and eph- before a Greek aspirate, as in ephemeral.

Above or outside of the endoskeleton; epaxial.

Drawn outside of; -- used to designate a circle that touches one of the sides of a given triangle, and also the other two sides produced.

A prefix signifying out of, outside; as in exocarp, exogen, exoskeleton.

Situated or arising outside of the heat; as, exocardial murmurs; -- opposed to endocardiac.

Relating to exogamy; marrying outside of the limits of one's own tribe; -- opposed to endogenous.

stom, or tribal law, which prohibits marriage between members of the same tribe; marriage outside of the tribe; -- opposed to endogamy. Lubbock.

en the other two, and increasing, if at all, by the animal addition of a new layer to the outside next to the bark. The leaves are commonly netted-veined, and the number of cotyledons is two, or, very rarely, several in a whorl. Cf. Endogen. Gray.

External; on the outside; without the limits of; extrinsic; as, an object exterior to a man, opposed to what is within, or in his mind. Without exterior help sustained. Milton.

Outward; exterior; relating to the outside, as of a body; being without; acting from without; -- opposed to internal; as, the external form or surface of a body. Of all external things, . . . She [Fancy] forms imaginations, aery shapes. Milton.

In an external manner; outwardly; on the outside; in appearance; visibly.

A Latin preposition, denoting beyond, outside of; -- often used in composition as a prefix signifying outside of, beyond, besides, or in addition to what is denoted by the word to which it is prefixed.

Outside of the uterus, or womb. Extra-uterine pregnancy (Med.), a condition of pregnancy in which the fetus is not in the uterus, but in the Fallopian tube or in the abdominal cavity.

Situated outside of a joint.

Growing outside of the axils; as, an extra-axillary bud.

Outside of the branchial arches; -- said of the cartilages thus placed in some fishes.

Situated outside of a capsule, esp. outside the capsular ligament of a joint.

Lying outside of the domain of logic. -- Ex`tra*log"ic*al*ly, adv.

Outside of the walls, as of a fortified or walled city.

Beyond or outside of the tropics. Whewell.