Meaning & Definition of word "Concave"

Concave

/ˈkɒn.keɪv/

noun:

  • 1. A surface or shape that is curved inward.
    • Example: The artist chose a concave structure for her sculpture to create a sense of depth.

adjective:

  • 1. Having an outline or surface that curves inward.
    • Example: The bowl has a concave shape that holds the ingredients perfectly.
  • 2. Referring to a mirror or lens that is curved inward.
    • Example: The concave mirror magnified the reflection, making it easier to see.
  • 3. In geometry, a shape that has at least one interior angle greater than 180 degrees.
    • Example: The concave polygon requires a specific method for calculating its area.

Etymology

From Latin 'concavus', meaning 'hollowed out'.

Common Phrases and Expressions

concave mirror:

A mirror that is curved inward and can focus light.

concave lens:

A lens that is thinner in the middle than at the edges, often used in glasses.

Related Words

convex:

Curved or bulging outward.

indent:

To move or press something inward or create a recess.

Slang Meanings of concave

Meaning: Used informally to describe a depressed area or feature.

Example Sentence: That part of the car's body is totally concave.