litmus


Also found in: Dictionary, Thesaurus, Idioms, Encyclopedia, Wikipedia.
Related to litmus: litmus paper

litmus

 [lit´mus]
a blue pigment prepared from Rocella tinctoria and other lichens.
litmus paper absorbent paper impregnated with a solution of litmus, dried and cut into strips. It is used to indicate the acidity or alkalinity of solutions. If dipped into alkaline solution it remains blue; acid solution turns it red. It is used to test urine and other body fluids; it has a pH range of 4.5 to 8.3.

lit·mus

(lit'mŭs), [old C.I. 1242]
A blue coloring matter obtained from Roccella tinctoria and other species of lichens, the principal component of which is azolitmin; used as an indicator (reddened by acids and turned blue again by alkalies).
[a corruption of lacmus, fr. Dutch lakmoes]

litmus

/lit·mus/ (lit´mus) a pigment prepared from Rocella tinctoria and other lichens; used as an acid-base (pH) indicator.

lit·mus

(lit'mŭs)
A blue coloring material obtained from Roccella tinctoria and other lichens, the principal component of which is azolitmin; used as an indicator (reddened by acids and turned blue again by alkalies).
[a corruption of lacmus, fr. Dutch lakmoes]

litmus

A powder derived from certain lichens that contains the natural dye azolitmin. This turns red in an acidic medium at pH below 4.5 and blue at an alkaline pH above 8.3. Paper strips impregnated with litmus form convenient indicators for checking urine acidity.

litmus

a blue pigment prepared from Rocella tinctoria and other lichens.

litmus paper
absorbent paper impregnated with a solution of litmus, dried and cut into strips. It is used to indicate the acidity or alkalinity of solutions. If dipped into alkaline solution, it remains blue; acid solution turns it red. It is used to test urine and other body fluids; it has a pH range of 4.5 to 8.3.
References in periodicals archive ?
For more information about Litmus Logic, visit http://www.
Unexpectedly, Litmus discovered that mobile users spend longer reading messages than people using desktop computers.
No Senator should make a litmus test out of what Justice Blackmun's former law clerk Edward Lazarus calls 'one of the most intellectually suspect constitutional decisions of the modern era.
Based in Kansas City, Missouri, Litmus has built click fraud protected advertising distribution technologies for the performance-based advertising, search marketing, and e-retailing industries.
Kerry's litmus test requirement means that, under his presidency, constitutionalist judges, who make decisions based on the law's text but avoid pioneering new social policy from the bench, would lose ground to judicial activists," Gray said.
Benjamin Jennings, the Company's chairman, stated, "We are very focused on closing our acquisition of Litmus Media, because we expect John Linden and Toby Teeter to greatly facilitate our bringing our core technology assets to bear on the existing products and services of Think Partnership.
Additionally, the Company has announced that it entered into a definitive agreement to purchase Litmus Media, Inc.
TODAY, when the 15 Los Angeles City Council members cast their votes for or against putting a sales tax hike on the May 17 ballot, will be a litmus test of whether they are servants of the public or of special interests.
Quidel Corporation (Nasdaq: QDEL) announced today that the Company has signed a definitive agreement to acquire Litmus Concepts, Inc.
the "Company")(AMEX:THK) today announced that it has entered into an agreement to acquire Litmus Media, Inc.
The deadline for deciding on the ballot measure comes next week, so this would seem to be a litmus test for whether there is any honor at all in the council.
Thompson said 'There's no question that Governor Bush -- and I agree with him -- said there's going to be no litmus test for appointments .