Definitions
from The Century Dictionary.
- noun Same as
contraparallelogram .
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun A
quadrilateral in which the pairs ofnonadjacent sides arecongruent , but in which twoopposite sidesintersect and are therefore notparallel .
Etymologies
from Wiktionary, Creative Commons Attribution/Share-Alike License
anti- + parallelogram
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