engram.
A postulated physical or biochemical change in neural tissue that represents a memory.
Meaning & usage
A postulated physical or biochemical change in neural tissue that represents a memory.
A painful, negative mental image representing a past event.
Where this word comes from
Borrowed from German Engramm which was coined by German evolutionary biologist Richard Semon in 1904. First attested in English in 1921 (see quotation below). Ultimately from Ancient Greek ἐν (en, “in”) + γράμμα (grámma, “writing, picture”).
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.