EXOGAMY
Ex*og"a*my, n.
Defn: The custom, or tribal law, which prohibits marriage between members of the same tribe; marriage outside of the tribe; — opposed to endogamy. Lubbock.
EXOGEN
Ex"o*gen, n. Etym: [Exo- + -gen: cf. F. exogène.] (Bot.)
Defn: A plant belonging to one of the greater part of the vegetable kingdom, and which the plants are characterized by having c wood bark, and pith, the wood forming a layer between 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.
EXOGENETIC
Ex`o*ge*net"ic, a. (Biol.)
Defn: Arising or growing from without; exogenous.
EXOGENOUS
Ex*og"e*nous, a.
1. (Bot.)
Defn: Pertaining to, or having the character of, an exogen; — the opposite of endogenous.
2. (Biol.)