Definition: That part of the developing brain that is the most caudal of the three primary vesicles of the embryonic neural tube; secondarily divided into metencephalon and myelencephalon; the rhombencephalon includes the pons, cerebellum, and medulla oblongata.
Synonym(s): hindbrainTA, hindbrain vesicle
[rhombo- + G. enkephalos, brain]
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Examples: glitazone, GI cocktail, etc.