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Dictionary

Words, grammatical forms and meanings linked to the ontology.

concave en · ADJ

Pronunciation

  • /kɒnˈkeɪv/ (UK)
  • /kɑnˈkeɪv/ (US)
  • /kənˈkeɪv/ (US)
  • /ˈkɑn.keɪv/ (US)
  • (US) audio
  • /ˈkɒn.keɪv/ (UK)

Etymology

From Middle English concave, from Old French concave, from Latin concavus.

Meanings

  1. Curved like the inner surface of a sphere or bowl.
  2. (not-comparable, of a polygon) Not convex; having at least one internal angle greater than 180 degrees.
  3. (not-comparable, of a real-valued function on the reals, qualifier:functional analysis) Satisfying the property that all segments connecting two points on the function's graph lie below the function.
  4. Hollow; empty.
    • as concave […] as a worm-eaten nut c. 1598–1600 (date written), William Shakespeare, “As You Like It”, in Mr. William Shakespeares Comedies, Histories, & Tragedies […] (First Folio), London: […] Isaac Iaggard, and Ed[ward] Blount, published 1623, →OCLC, [Act III, scene iv]:

Forms

SpellingFeaturesLabelsSource
most concave Degree=Sup lexicographic
more concave Degree=Cmp lexicographic

Antonyms

convex

Deriveds

biconcave · double concave · subconcave · proconcave · concavoconcave · concavify · concavely · concave function · planoconcave · pseudoconcave · concave envelope · nonconcave · quasiconcave · upper concave envelope · concavity · concaveness · concavation · concavification · convexoconcave

Synonyms

concavous

Translations (58)

nn konkav (curved inward) · tr konkav (curved inward) · de konkav (curved inward) · sk konkávny (curved inward) · fi konkaavi (curved inward) · mi areare (curved inward) · is íhvolfur (curved inward) · sv konkav (curved inward) · kk ойыс (curved inward) · es cóncavo (curved inward) · hu konkáv (curved inward) · ast cóncavu (curved inward) · et nõgus (curved inward) · kw kowgrom (curved inward) · de eingewölbt (curved inward) · bg вдлъбнат (curved inward) · haw ʻeʻele (curved inward) · gl cóncavo (curved inward) · tyz boóng (curved inward) · tl malukong (curved inward) · cs konkávní (curved inward) · da konkav (curved inward) · eo kava (curved inward) · fa کاو (curved inward) · hy գոգավոր (curved inward) · cs vydutý (curved inward) · de nach innen gewölbt (curved inward) · tr içbükey (curved inward) · fi kovera (curved inward) · ar مُقَعَّر (curved inward) · ca còncau (curved inward) · fr concave (curved inward) · cmn(curved inward) · id cekung (curved inward) · ar مُجَوَّف (curved inward) · cy ceugrom (curved inward) · ko 요면 (curved inward) · pt côncavo (curved inward) · aht tsʼagh (curved inward) · ru во́гнутый (curved inward) · ro concav (curved inward) · cy ceugrwm (curved inward) · ja 凹面 (curved inward) · th เว้า (curved inward) · el κοίλος (curved inward) · bn অবতল (curved inward) · fo innhjólaður (curved inward) · sk vydutý (curved inward) · vi lõm (curved inward) · la concavus (curved inward) · mi kōpapa (curved inward) · sk dutý (curved inward) · fo innskaraður (curved inward) · nl hol (curved inward) · pl wklęsły (curved inward) · hu homorú (curved inward) · it concavo (curved inward) · nb konkav (curved inward)

concave en · NOUN

Pronunciation

  • /kɒnˈkeɪv/ (UK)
  • /kɑnˈkeɪv/ (US)
  • /kənˈkeɪv/ (US)
  • /ˈkɑn.keɪv/ (US)
  • (US) audio
  • /ˈkɒn.keɪv/ (UK)

Etymology

From Middle English concave, from Old French concave, from Latin concavus.

Meanings

  1. A concave surface or curve.
  2. The vault of the sky.
  3. 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).
  4. An element of a curved grid used to separate desirable material from tailings or chaff in mining and harvesting.
  5. An indentation running along the base of a surfboard, intended to increase lift.
  6. An indented area on the top of a skateboard, providing a position for foot placement and increasing board strength.
  7. A playing card made concave for use in cheating.

Forms

SpellingFeaturesLabelsSource
concaves Number=Plur lexicographic

Coordinates

convex

Translations (4)

kmr rûçal (A concave surface or curve) · bg вдлъбнатина (A concave surface or curve) · th รูปร่างที่นูน (A concave surface or curve) · ru невы́пуклый (A concave surface or curve)

concave en · VERB

Pronunciation

  • /kɒnˈkeɪv/ (UK)
  • /kɑnˈkeɪv/ (US)
  • /kənˈkeɪv/ (US)
  • /ˈkɑn.keɪv/ (US)
  • (US) audio
  • /ˈkɒn.keɪv/ (UK)

Etymology

From Middle English concave, from Old French concave, from Latin concavus.

Meanings

  1. To render concave, or increase the degree of concavity.

Forms

SpellingFeaturesLabelsSource
concaved Tense=Past, VerbForm=Part lexicographic
concaved Tense=Past lexicographic
concaves Number=Sing, Person=3, Tense=Pres lexicographic
concaving Tense=Pres, VerbForm=Part lexicographic

Deriveds

concaver

Translations (1)

bg вдлъбвам (To render concave, or increase the degree of concavity.)