1. Larger of the two types of spore produced in heterosporous plants; develops in ovule into a female gametophyte
   - megaspore

Derived forms: macrospores

Type of: spore

Encyclopedia: Macrospore

• one-on-one
• one-party
• one-person
• one-piece
• one-quadrillionth
• one-quarter
• one-quintillionth
• one-seed
• one-seeded
• one-seventh
• one-sided
• one-sidedly
• one-sidedness
• one-sixteenth
• one-sixth
• one-sixtieth
• one-sixty-fourth
• one-size-fits-all
• one-spot
• one-step
• one-ten-thousandth
• one-tenth
• one-third
• one-thirty-second
• one-thousandth