from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun A cone-shaped paper cap, formerly placed on the head of a slow or lazy pupil.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun A
conical hatone pupil is forced to wearto indicate he is a dunce.
- noun The
topological spaceobtained by identifyingthe sidescomprising the boundaryof a triangle, two sides with consistent orientationand the third with the reverseorientation.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- noun a cone-shaped paper hat formerly placed on the head of slow or lazy pupils
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