Useful english dictionary. 2012.
amphicyrtic — adj. [Gr. amphi, on both sides; kyrtos, curved] Having both sides curved, said of angles between curves; biconvex … Dictionary of invertebrate zoology
amphicyrtic — am·phi·cyr·tic … English syllables
amphicyrtic — a. with both sides convex … Dictionary of difficult words
Angle — This article is about angles in geometry. For other uses, see Angle (disambiguation). Oblique angle redirects here. For the cinematographic technique, see Dutch angle. ∠, the angle symbol In geometry, an angle is the figure formed by two rays… … Wikipedia
biconcave — adj. [L. bis, two; concavus, hollow or arched inward] Being concave on both sides; amphicoelous; see amphicyrtic … Dictionary of invertebrate zoology
biconvex — adj. [L. bis, two; convexus, arched outward] Being convex on opposite sides; lens shaped; see amphicyrtic, amphicoelous … Dictionary of invertebrate zoology
