Definition of pleiochasium in English:

pleiochasium

Pronunciation /ˌplʌɪəˈkeɪzɪəm/

noun

Botany
  • A cyme in which branching is continued by more than two lateral axes. Compare "monochasium", "dichasium".

Origin

Late 19th century; earliest use found in The Century Dictionary. From pleio- + -chasium.