fossette

/fo-set, faw-/US // fɒˈsɛt, fɔ- //UK // (fɒˈsɛt) //

窝赛特,窝塞特,窝窝头,窝窝团

Definitions

n.名词 noun

1
- : a small hollow or depression, as in a bivalve shell; dimple.
- : Pathology. a small, deep corneal ulcer.

However, the fossette itself is shallow and soon disappears with slight wear.
There is occasionally a saucer-shaped plate or platform just under the cardinal teeth and within the shell, called the fossette.
Within, the strong cardinal teeth are placed upon a long fossette.
In this species the cartilage fossette is the same as in Mactra; the marginal teeth are feeble, and there are no laterals.