bleen.
Of an object, blue when first observed before a specified time or green when first observed after that time.
Meaning & usage
Of an object, blue when first observed before a specified time or green when first observed after that time.
Where this word comes from
Blend of blue + green; coined by American philosopher Nelson Goodman in 1955 to illustrate concepts in the philosophy of science
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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.