Definition of perichaetial in US English:

perichaetial

(also perichetial)

adjective

Botany
  • Of, belonging to, or constituting a perichaetium.

Origin

Early 19th century; earliest use found in Samuel Frederick Gray (1766–1828), naturalist and pharmacologist. From perichaetium + -al; compare -ial.

Pronunciation

perichaetial

/ˌpɛrɪˈkiːtɪəl/