Definition of pectens:
(n) :
(zoology) One of the genus Pecten of scallops.
(n) :
(anatomy) A comb structure.
(n) :
(anatomy) The pubic bone.
(n) :
(anatomy, obsolete) The bones in the hand between the wrist and the fingers.
(n) :
(anatomy) Short for pecten oculi [A comb-like structure of blood vessels belonging to the choroid in the eye of a bird, believed to nourish the retina and control the pH of the vitreous body.]