concave
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concave
- /ˈkɒn.keɪv/ UK
- /kɒnˈkeɪv/ UK
- /ˈkɑn.keɪv/ US
- /kɑnˈkeɪv/ US
- /kənˈkeɪv/ US
Where it comes from
From Middle English concave, from Old French concave, from Latin concavus.
adjective more concave · most concave
- Curved like the inner surface of a sphere or bowl.
- Not convex; having at least one internal angle greater than 180 degrees.
- Satisfying the property that all segments connecting two points on the function's graph lie below the function.
- Hollow; empty. as concave […] as a worm-eaten nut
noun concaves
- A concave surface or curve.
- The vault of the sky.
- One of the celestial spheres of the Ptolemaic or geocentric model of the world. Aristotle makes [Fire] to move to the concave of the Moon. - Thomas Salusbury (1661).
- An element of a curved grid used to separate desirable material from tailings or chaff in mining and harvesting.
- An indentation running along the base of a surfboard, intended to increase lift.
- An indented area on the top of a skateboard, providing a position for foot placement and increasing board strength.
- A playing card made concave for use in cheating.
verb concaves · concaving · concaved
- To render concave, or increase the degree of concavity.
Thesaurus
Closest in meaning: biconcave, concavo-convex, planoconcave, indented, bursiform, recessed, saclike, acetabular, cupular, cupulate, cotyloid, umbilicate, cup-shaped, dished, depressed, concavo-concave
Translations
Every language
adj curved inward
| Español | cóncavo |
|---|---|
| 한국어 | 요면 yomyeon |
| 日本語 | 凹面 ōmen |
| 中文 | 凹 āo |
| Português | côncavo |
| Français | concave |
| Deutsch | konkav, nach innen gewölbt, eingewölbt |
| Italiano | concavo |
| Ελληνικά | κοίλος koílos |
| Română | concav |
| Русский | во́гнутый vógnutyj |
| Tiếng Việt | lõm |
| العربية | مُقَعَّر muqaʕʕar, مُجَوَّف mujawwaf |
noun A concave surface or curve
| Русский | невы́пуклый nevýpuklyj |
|---|
Talk about this word "concave." Wiktionary, via Micwyn, micwyn.com/word/concave. Accessed 6 Nov. 2026. concave. (n.d.). In Wiktionary, via Micwyn. Retrieved November 6, 2026, from https://micwyn.com/word/concave "concave." Wiktionary, via Micwyn. Accessed November 6, 2026. https://micwyn.com/word/concave.Cite this
@misc{concave_2026,
title = {concave},
howpublished = {Wiktionary, via Micwyn},
year = {2026},
url = {https://micwyn.com/word/concave},
urldate = {2026-11-06}
}
