- dunce hat
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b) 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.
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dunce hat
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Dunce hat (topology) — For the item of clothing designed to be humiliating, now rarely used, see dunce cap. To get a dunce hat, take a solid triangle and successively glue together all three sides with the indicated orientation. In topology, the dunce hat is a compact… … Wikipedia
Dunce cap — For the topological space, see Dunce hat (topology). A young boy wearing a dunce cap in class, from a staged photo c.1906 A dunce cap, also variously known as a dunce hat, dunce s cap, or dunce s hat, is a pointed hat. In popular culture, it is… … Wikipedia
dunce cap — noun a) A conical hat one is forced to wear to indicate he is a dunce. b) The topological space obtained by identifying the sides comprising the boundary of a triangle, two sides with consistent orientation and the third with the … Wiktionary
dunce cap — dunce′ (or dunce′ s) cap n. a tall cone shaped hat formerly worn by slow or lazy students as a punishment Also called fool s cap Etymology: 1830–40 … From formal English to slang
dunce's cap — n a tall pointed hat that a stupid student had to wear in school in the past … Dictionary of contemporary English
dunce cap — n. a cone shaped hat that children slow at learning were formerly forced to wear in school … English World dictionary
dunce's cap — noun a cone shaped paper hat formerly placed on the head of slow or lazy pupils • Syn: ↑dunce cap, ↑fool s cap • Hypernyms: ↑hat, ↑chapeau, ↑lid * * * noun see dunce cap * * * … Useful english dictionary
dunce cap — noun a cone shaped paper hat formerly placed on the head of slow or lazy pupils • Syn: ↑dunce s cap, ↑fool s cap • Hypernyms: ↑hat, ↑chapeau, ↑lid * * * noun or … Useful english dictionary
hat — n cap, headpiece, headgear, headdress, chapeau; crown, crownpiece, mortarboard, helmet, sallet, casque, casquetel, Sl. tin hat, hard hat; busby, Balmoral, glengarry, topee, kepi, pill box; beanie, skullcap, yar mulke, calotte, zucchetto, Rom.… … A Note on the Style of the synonym finder
dunce cap — a tall, cone shaped hat formerly worn by slow or lazy students as a punishment in school. Also, dunce s cap. Also called fool s cap. [1830 40] * * * … Universalium
