Definition of polysiphonous in English:

polysiphonous

adjective

Botany
  • 1Of an algal stem or filament: composed of several strands of large elongated cells. Of an alga: having filaments of this kind.

  • 2Of a pollen grain: producing two or more pollen tubes during germination.

Origin

Mid 19th century; earliest use found in Miles Berkeley (1803–1889), Church of England clergyman and naturalist. From poly- + siphon + -ous.

Pronunciation

polysiphonous

/ˌpɒlɪˈsʌɪf(ə)nəs//ˌpɒlɪˈsʌɪfənəs/