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PARALLELOGRAM
Pronunciation (US): | (GB): |
I. (noun)
Sense 1
Meaning:
A quadrilateral whose opposite sides are both parallel and equal in length
Classified under:
Nouns denoting two and three dimensional shapes
Hypernyms ("parallelogram" is a kind of...):
quadrangle; quadrilateral; tetragon (a four-sided polygon)
Hyponyms (each of the following is a kind of "parallelogram"):
diamond; rhomb; rhombus (a parallelogram with four equal sides; an oblique-angled equilateral parallelogram)
rhomboid (a parallelogram with adjacent sides of unequal lengths; an oblique-angled parallelogram with only the opposite sides equal)
rectangle (a parallelogram with four right angles)
Antonym:
trapezium (a quadrilateral with no parallel sides)