exogeny

from The Century Dictionary.

• noun Same as exogamy.
• noun In sporozoans, sporulation taking place after the cyst has left the host, as in Gregarinida and Coccidiidea generally. See endogeny.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun Influence by external forces.
• noun Growth on the outside or near the surface.
• noun botany A division of woody plants whose stem is formed by successive accretions to the outside of the wood under the bark
• noun anatomy A phase in the life cycle of a hair follicle in which a hair exits the follicle.
• noun anthropology Exogamy.