Definition of peristomate in US English:

peristomate

adjective

Botany
  • Of a moss or moss capsule: having a peristome.

Origin

1940s; earliest use found in Bulletin of the Torrey Botanical Club. From peristome + -ate.

Pronunciation

peristomate

/ˌpɛrɪˈstəʊmeɪt/