hyobranchial cleft

hy·o·bran·chi·al cleft

the cleft caudal to the hyoid second pharyngeal or arch of the embryo.
Farlex Partner Medical Dictionary © Farlex 2012

hy·o·bran·chi·al cleft

(hīō-brangkē-ăl kleft)
Cleft caudal to hyoid (second) pharyngeal arch of the embryo.
Medical Dictionary for the Dental Professions © Farlex 2012