Defn: Growing by addition to the exterior.

3. (Anat.)

Defn: Growing from previously ossified parts; — opposed to autogenous. Owen. Exogenous aneurism (Med.), an aneurism which is produced by causes acting from without, as from injury.

EXOGYRA
Ex`o*gy"ra n. Etym: [NL., fr. Gr. (Paleon.)

Defn: A genus of Cretaceous fossil shells allied to oysters.

EXOLETE Ex"o*lete, a. Etym: [L. exoletus, p. p. of exolescere to grow out, grow out of use; ex out + olescere to grow.]

Defn: Obsolete; out of use; state; insipid. [Obs.]

EXOLUTION
Ex`o*lu"tion, n. Etym: [L. exolutio a release. See Exolve.]

Defn: See Exsolution. [Obs.] Sir T. Browne.

EXOLVE
Ex*olve", v. t. Etym: [L. exolvere, exsolutum; ex out + solvere.]