from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. curved toward the same side in all directions
- adj. of a surface whose Gaussian curvature is positive at all points
from the GNU version of the Collaborative International Dictionary of English
- adj. Curved toward the same side in all directions; -- said of surfaces which in all directions around any point bend away from a tangent plane toward the same side, as the surface of a sphere; -- opposed to anticlastic.
from The Century Dictionary and Cyclopedia
- Having the curvatures of all normal sections similarly directed: noting a curved surface so characterized, as that of a ball: opposed to anticlastic.
Sorry, no etymologies found.