Meaning & Definition of word "Concave"
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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.