arcus.
A white band of cholesterol that forms at the edge of the cornea
Meaning & usage
A white band of cholesterol that forms at the edge of the cornea
A low, horizontal cloud typically forming at the leading edge of thunderstorm outflow
An elastic band around the base of the arolium, a pad at the end of the leg of certain insects
An arc-shaped band of thickened sexine extending between two apertures on a pollen grain or spore
Where this word comes from
Borrowed from Latin arcus. Doublet of arc and arco. Distantly related to arrow.
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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.