Standard Lemma guide

micropyle

noun · 3 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.

  • Received-Pronunciation: /ˈmaɪ.kɹəʊˌpaɪl/
  • US: /ˈmaɪ.kɹoʊˌpaɪl/

1

noun

Meaning 1

In seed-bearing plants, a small opening in the integuments of the ovule through which sperm are able to access the ovum.

Definition source: English Wiktionary via Wiktextract

Topics: biology, botany, natural-sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

The hilum of an ovum at the point of attachment to the ovary; any opening in the coverings of an ovum by which spermatozoa may find entrance.

Definition source: English Wiktionary via Wiktextract

Topics: biology, natural-sciences, zoology

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

noun

Meaning 3

minute opening in the wall of an ovule through which the pollen tube enters

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: aperture

History

Etymology

From French, from Ancient Greek μικρός (mikrós, “small”) + πύλη (púlē, “gate”).

Across languages

Translations

4 source translations are retained for this English entry.

  • Finnish: siitereikä — botany
  • French: micropyle — botany
  • Polish: mikropyl — botany
  • Turkish: kapıcık — botany