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Webster's Dictionary 1828 - Online Edition

Webster's Dictionary 1828

Americal Dictionary of the English Language

American Dictionary
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English Language

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Aperture

AP'ERTURE, noun

1. The act of opening; more generally, an opening; a gap, cleft or chasm; a passage perforated; a hole through any solid substance.

2. An opening of meaning; explanation. [Not used.]

3. In geometry, the space between two right lines, forming an angle.