Definitions

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun optics A focus; a point at which rays of light or other radiation converge.
  • noun The centre of any activity.
  • noun art A feature that attracts particular attention.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun a point of convergence of light (or other radiation) or a point from which it diverges
  • noun the concentration of attention or energy on something
  • noun a central point or locus of an infection in an organism

Etymologies

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Examples

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