micropyle
noun
mi·cro·pyle
ˈmī-krə-ˌpī(-ə)l 
1
: a minute opening in the integument of an ovule of a seed plant
2
: a differentiated area of surface in an egg through which a sperm enters
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Scientists think the fungus enters the orchid seed through a very small opening in the seed wall called a micropyle.
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BostonGlobe.com, 20 May 2021
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BostonGlobe.com, 20 May 2021
Cite this Entry
“Micropyle.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/micropyle. Accessed 30 Oct. 2025.
Copy CitationMedical Definition
micropyle
noun
mi·cro·pyle
ˈmī-krə-ˌpīl
: a differentiated area of surface in an egg through which a sperm enters
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