Definition of trimerous in English:

trimerous

adjective

Botany Zoology
  • 1Having parts arranged in groups of three.

    • ‘Basal lineages (Cabomba, Brasenia, Nuphar, and Barclaya) are trimerous with differentiated sepals and petals.’
    • ‘Trillium species are characterized by a single trimerous flower subtended by a whorl of three leaves.’
    • ‘Some botanists noted certain similarities such as floral organs in trimerous whorls uniting members of this order and ‘primitive’ monocotyledons (Alisma).’
    • ‘Their perigonium consists of two trimerous whorls of tepals, or conversely of a perianth comprising calyx and corolla.’
    • ‘Some non-terminal flowers are dimerous, but otherwise identical to trimerous flowers.’
    1. 1.1 Consisting of three joints or parts.
      • ‘Trillium govanianum possesses characters normally seen in only Paris such as filiform petals and ellipsoid, monosulcate pollen, but it shares having trimerous flowers with Trillium.’
      • ‘The fossil flower, Lauranthus futabensis, gen. et sp. nov. is assigned to the Lauraceae based on the regular trimerous organization of the perianth and androecium, and the valvate anthers.’

Pronunciation

trimerous

/ˈtrɪm(ə)rəs//ˈtrʌɪm(ə)rəs/