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curvature

[kur-vuh-cher, -choor] / ˈkɜr və tʃər, -ˌtʃʊər /
NOUN
rounded part of thing, usually body part
Synonyms
STRONG
arc arch bend bow curve deflection flexure incurvation round shape
WEAK
arching curving curvity
Antonyms
STRONG
line

From Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.