1. canthal - Noun
2. canthal - Adjective
canthal (plural canthals)
(zoology) Any of the scales along the upper surface of the canthus rostralis in snakes, located behind the level of the prenasal/postnasal suture and before the supraocular.
canthal (not comparable)
(anatomy) Pertaining to a canthus (meeting point of upper and lower eyelid)