A small opening in the seed coat that corresponds to the original opening in the ovule through which the pollen tube entered during fertilization. The micropyle often serves as the primary entry point for water during seed germination.
From Greek 'mikros' meaning 'small' and 'pyle' meaning 'gate' or 'opening,' literally 'small gate.' The term was established in botanical literature during the 19th century as detailed studies of plant reproduction revealed the structure and function of ovules.
The micropyle is like a seed's original doorway! It's the exact same opening that allowed sperm cells to enter and create the embryo, and then it becomes the gateway for water to enter and wake up that embryo during germination - talk about full circle!
Complete word intelligence in one call. Free tier — 50 lookups/day.