Definition of phyllopodium in US English:

phyllopodium

noun

  • 1The main axis of a leaf or a fern frond.

  • 2Specifically. An expanded and hardened leaf-base found in certain quillworts (family Isoetaceae), providing protection for dormant meristematic tissue.

  • 3Zoology. A broad, flattened limb of the kind found in branchiopod crustaceans.

Origin

Late 19th century; earliest use found in Frederic Bower (1855–1948), botanist. From phyllo- + -podium.

Pronunciation

phyllopodium

/ˌfɪləˈpəʊdɪəm/