As a noun lewis
is a cramp iron inserted into a cavity in order to lift heavy stones; used as a symbol of strength in freemasonry.
As an adjective undefined is
lacking a definition or value.
(en proper noun
of Norman origin, the English form of Louis.
; anglicized form of Llewellyn.
The , Scotland.
The title given to a partially apprenticed Freemason who is normally the Master or Son of a practicing Freemason; One practising or learning the degrees of Freemasonry after introduction to the degrees and before full induction or before becoming a Worshipful Brother.
* Holstein-Lewis fracture
* Lewis acid
* Lewis base
* 1595 William Shakespeare: Third Part of King Henry the Sixth : Act III, Scene III:
*: And tell false Edward, thy supposed king,
*: That Lewis of France is sending over masquers,
*: To revel it with him and his new bride.
* 1994 Joseph Heller: Closing Time ISBN 0671746049 page 42:
*: They named me Lewis and called me Louie as though my name was Louis, and I never saw the difference until Sammy pointed it out. And even then, I still don't see much difference.
* - physical chemist
Lacking a definition or value.
(mathematics, computing) That does not have a meaning and is thus not assigned an interpretation.
- The result of division by zero is undefined .