Phys. [f. Gr. ἀ priv. + γένεσις birth.] Imperfect development of the body or any part of it. Also (on Gr. analogy) agenesia. (Often confused with AGENNESIS.)
1853. Mayne, Agenesia.
1879. Syd. Soc. Lex., Agenesis and Agenesia.
