Definition of monothecal in US English:
monothecal
adjective
Botany
Of an anther or stamen: having a single cavity.
Origin
Mid 19th century; earliest use found in John Balfour (1808–1884), botanist. From mono- + theca + -al.
Pronunciation
monothecal
/ˌmɒnə(ʊ)ˈθiːkl/