| var. of auto- 1 before a vowel: autacoid. |
| a combining form meaning “self,” “same,” “spontaneous,” used in the formation of compound words: autograph. |
| aut- pref. Variant of auto-. |
| auto- or aut- pref.
[Greek, from autos, self.] |
auto- or aut-
pref.
Self; same: autogamy.
| auto-
A prefix meaning "oneself," as in autoimmune, producing antibodies or immunity against oneself. It also means "by itself, automatic," as in autonomic, governing by itself. |
