Definition of prothallial in English:

prothallial

adjective

Botany
  • See prothallus

    • ‘A consistent feature of every experiment that was undertaken in this study was that a sufficient quantity of white light was an absolute requirement for both prothallial and rhizoid development.’
    • ‘The grain is empty because the body cell and prothallial nuclei have moved out along the pollen tube towards the archegonia.’