orthotomy

English

Etymology

From ortho- +‎ -tomy.

Noun

orthotomy (uncountable)

1. (geometry) The property of cutting at right angles.
2. A method of cutting or dividing an optical element, such as a lens or a crystal, in a manner that is perpendicular to a specific axis or surface.

Part or all of this entry has been imported from the 1913 edition of Webster’s Dictionary, which is now free of copyright and hence in the public domain. The imported definitions may be significantly out of date, and any more recent senses may be completely missing.
(See the entry for “orthotomy”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.)