Definition of metaxylem in US English:

metaxylem

noun

Botany
  • The later-formed part of the primary xylem, maturing after elongation of the plant tissue is complete and distinguished by the presence of pitted tracheary elements.

Origin

Late 19th century. From meta- + xylem, after French métaxylème.

Pronunciation

metaxylem

/mɛtəˈzʌɪləm/