Noun

1. A program (originally developed under Unix) involved in lexical analysis -- specifically, a program for generating lexical analyzers.

Verb

1. To lexically analyze a computer program's source code, prior to parsing it.

Noun

1. A law
   • Publilius Syrus (translation Benham's Book of Quotations 1948)

     Lex universa est quae iubet nasci et mori.

     The universal law is that which ordains that we are to be born and to die.