- Zoology, Anatomy.
- a comblike part or process.
- a pigmented vascular membrane with parallel folds suggesting the teeth of a comb, projecting into the vitreous humor of the eye in birds and reptiles.
- any bivalve mollusk of the genus Pecten; scallop.
- a comblike structure in the eye of birds and reptiles, consisting of a network of blood vessels projecting inwards from the retina, which it is thought to supply with oxygen
- any other comblike part or organ
- any scallop of the genus Pecten, which swim by expelling water from their shell valves in a series of snapping motions
