follow Dictionary.com

Stories We Like: Novels For Language Lovers

Gram-positive

[gram-poz-i-tiv] /ˈgræmˈpɒz ɪ tɪv/
adjective, (often lowercase)
1.
(of bacteria) retaining the violet dye when stained by Gram's method.
Origin
1905-1910
1905-10; see Gram's method
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source
British Dictionary definitions for Gram-positive

Gram-positive

adjective
1.
designating bacteria that retain the violet stain in Gram's method
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Cite This Source
Gram-positive in Medicine

gram-positive or Gram-positive (grām'pŏz'ĭ-tĭv)
adj.
Of, relating to, or being a bacterium that retains the violet stain used in Gram's method.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Cite This Source
Gram-positive in Science
gram-positive  
Relating to a group of bacteria that turn a dark-blue color when subjected to a laboratory staining method known as Gram's method. Gram-positive bacteria have relatively thick cell walls and are generally sensitive to the destructive effects of antibiotics or the actions of the body's immune cells. Gram-positive bacteria include beneficial nitrogen-fixing bacteria in soil, as well as the bacteria that cause anthrax, botulism, leprosy, tuberculosis, scarlet fever, and strep throat. Compare gram-negative.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source

Word of the Day

Difficulty index for Gram-positive

Few English speakers likely know this word

Word Value for Gram

7
9
Scrabble Words With Friends

Quotes with Gram-positive