[kath-i-tuh s, kuh-thee-tuh s]
noun, plural cath·e·ti [kath-i-tahy, kuh-thee-tahy] /ˈkæθ ɪˌtaɪ, kəˈθi taɪ/.
  1. (in an Ionic capital) the vertical guideline through the eye of a volute, from which the form of the volute is determined.

Origin of cathetus

1565–75; < Latin (noun) < Greek káthetos perpendicular, equivalent to kathe- (see catheter) + -tos adj. suffix Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for cathetus

Historical Examples of cathetus