from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A test for chemical acidity or basicity using litmus paper.
- n. A test that uses a single indicator to prompt a decision: "The word 'hopefully' has become the litmus test to determine whether one is a language snob or a language slob” ( William Safire).
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A simple test for the acidity or alkalinity of a substance, using litmus paper.
- n. Any test which produces a decisive result by measuring a single indicator.
from the GNU version of the Collaborative International Dictionary of English
- A test to determine acidity or alkalinity, using litmus as an inddicator.
- A test for a single factor, which has only two outcomes, positive or negative
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a coloring material (obtained from lichens) that turns red in acid solutions and blue in alkaline solutions; used as a very rough acid-base indicator
- n. a test that relies on a single indicator
From litmus + test. (Wiktionary)