Definition of "sporophyl" []

• In botany, the leaf or leaf-like organ which bears the spores, or receptacles containing the spores, in many of the vascularcryptogams. (noun)
• In algol., a leaflet-like outgrowth upon which occur the sporangia, arising below the large terminal blade in Alaria and other closely related genera of the Phæophyceæ. (noun)

The Century Dictionary (Public Domain)