Alkaline or neutral; not acidic. / Without using acid.

(group theory) A group that has a presentation without relators; equivalently, a free product of some number of copies of ℤ.

(mathematics) A group formed from others by concatenating their presentations (when those presentations are written with disjoint sets of generators).

Someone who obtains goods or services legally without paying. / (economics) One who obtains benefit from a public good without paying for it directly.

Alternative form of freewheeling

(intransitive, slang, rare) To go braless under one's outer clothing.

Synonym of GM-free

(programming) The situation where a program attempts to free a previously allocated resource more than once, potentially resulting in undefined behaviour that may be exploited by an attacker.

Having opinions that are contrary to dogma or the positions of authority.

(algebra) A monoid whose underlying set is the Kleene closure of some set of generators, and whose operator is concatenation.