Definition of phyllome in US English:

phyllome

noun

Botany
  • A leaf; a plant organ resembling a leaf; specifically an organ homologous with a leaf or regarded as a modified leaf (as a sepal, petal, stamen, carpel, bract, etc.).

Origin

Mid 19th century (in an earlier sense). From phyllo- + -ome.

Pronunciation

phyllome

/ˈfɪləʊm/