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A conical hat that a school pupil is made to wear to indicate that he/she is a dunce.
Definition source: English Wiktionary via Wiktextract
Usage: historical
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Meaning relationships
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Antonyms: none provided
The topological space obtained by identifying the sides comprising the boundary of a triangle, two sides with consistent orientation and the third with the reverse orientation.
Definition source: English Wiktionary via Wiktextract
Topics: mathematics, sciences, topology
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Meaning relationships
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Antonyms: none provided
No etymology was provided for this word.