| BAER | <abbreviation> Brainstem auditory evoked response. See: evoked response. (05 Mar 2000) |
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| Baer's law | The general organ characteristics found in all members of a group appear earlier in embryogenesis than the special organ characteristics that distinguish specific members of the group; this law is the predecessor of the recapitulation theory. (05 Mar 2000) |
| Baer's vesicle | An obsolete term for vesicular ovarian follicle. (05 Mar 2000) |
| Baer, Karl von | <person> German-Russian embryologist, 1792-1876. See: Baer's law, Baer's vesicle. (05 Mar 2000) |