corradiation

English

Noun

corradiation (uncountable)

A conjunction or concentration of rays in one point.
- 1627 (indicated as 1626), Francis [Bacon], “III. Century.”, in Sylua Syluarum: Or A Naturall Historie. In Ten Centuries. […], London: […] William Rawley […]; [p]rinted by J[ohn] H[aviland] for William Lee […], →OCLC:
  the basis is in the object, and the vertical point in the eye ; so as there is a corradiation and conjunction of beams

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 The imported definitions may be significantly out of date, and any more recent senses may be completely missing.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 “corradiation”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.)