pterygostome
/ˈtɛrɪɡəˌstəʊm/Zoology
noun
In certain decapod crustaceans: either of a pair of winglike projections of the anterior edge of the ventral carapace, flanking the buccal cavity; this region of the carapace.
Origin
Mid 19th century; earliest use found in James Dana (1813–1895), geologist, zoologist, and teacher. From pterygo- + -stome.
- non-recoil
- non-recourse
- nonrecurring
- non-reducible
- non-reducing
- non-reduction
- non-referential
- nonrefillable
- non-reflexive
- non-refoulement
- non-refundable
- non-regent
- non-regular
- non-regulation
- non-relational
- non-relative
- non-relativistic
- non-relativistically
- non-religious
- non-remission
- non-remittance
- non-renewable
- non-representational
- non-residence
- non-residency