Standard Lemma guide

macropinocytosis

noun · 1 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.

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1

noun

Meaning 1

A form of endocytosis in which a large fluid-filled vesicle, or macropinosome, is pinched off from the cell membrane and brought into the interior of the cell

Definition source: English Wiktionary via Wiktextract

Usage: countable, uncountable

Topics: biology, cytology, medicine, natural-sciences, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

Etymology tree Proto-Indo-European *meh2ḱ- Proto-Indo-European *-rós Proto-Indo-European *mh2ḱrós Proto-Hellenic *makrós Ancient Greek μᾰκρός (măkrós)der. French macro-der. English macro- English pinocytosis English macropinocytosis From macro- + pinocytosis.