AGAR

Pronunciation (US):

(GB):

IPA (US):

 Dictionary entry overview: What does agar mean? 

• AGAR (noun)
  The noun AGAR has 2 senses:

1. any culture medium that uses agar as the gelling agent

2. a colloidal extract of algae; used especially in culture media and as a gelling agent in foods

  Familiarity information: AGAR used as a noun is rare.

 Dictionary entry details 

• AGAR (noun)

Sense 1

Meaning:

Any culture medium that uses agar as the gelling agent

Classified under:

Nouns denoting substances

Synonyms:

agar; nutrient agar

Hypernyms ("agar" is a kind of...):

culture medium; medium ((bacteriology) a nutrient substance (solid or liquid) that is used to cultivate micro-organisms)

Meronyms (substance of "agar"):

agar; agar-agar (a colloidal extract of algae; used especially in culture media and as a gelling agent in foods)

Hyponyms (each of the following is a kind of "agar"):

blood agar (a culture medium containing whole blood as the nutrient)

Sense 2

Meaning:

A colloidal extract of algae; used especially in culture media and as a gelling agent in foods

Classified under:

Nouns denoting substances

Synonyms:

agar; agar-agar

Hypernyms ("agar" is a kind of...):

gum (any of various substances (soluble in water) that exude from certain plants; they are gelatinous when moist but harden on drying)

Holonyms ("agar" is a substance of...):

agar; nutrient agar (any culture medium that uses agar as the gelling agent)

 Context examples 

This species is motile by peritrichous flagella, catalase and indole positive, oxidase negative, does not ferment dulcitol and cannot grow on cefsulodin irgasan novobiocin agar in culture.

(Kluyvera cryocrescens, NCI Thesaurus)

A method to determine microbial susceptibility to antibiotics in which test bacteria is inoculated onto agar plates with serial dilutions of know quantities of antibiotics.

(Agar Dilution Method, NCI Thesaurus)

A method to determine microbial susceptibility to antibiotics in which an agar plate, which has a concentration gradient of the drug within the agar, is streaked with the microorganism of interest.

(Gradient Diffusion Method, NCI Thesaurus)

The antibiotic diffuses from the strip producing a concentration gradient of drug on the agar.

(Epsilometry, NCI Thesaurus)

This species is nonmotile, catalase and cytochrome oxidase negative, nonsporulating, and alpha hemolytic on blood agar.

(Lactococcus garvieae, NCI Thesaurus)

This species is oxidase and catalase positive, urease and alkaline phosphatase negative, nonmotile, relatively halointolerant, susceptible to penicillin, grows on blood agar or nutrient agar and does not reduce nitrate.

(Moraxella lincolnii, NCI Thesaurus)

This species is nonmotile, non-spore forming, not acid fast, catalase, oxidase, phosphatase, and ornithine decarboxylase positive, urease negative, reduces nitrate, and does not hydrolyze esculin or grow on MacConkey's agar.

(Pasteurella canis, NCI Thesaurus)

This species is oxidase and catalase positive, reduces nitrite, galactosidase negative, does not hydrolyze tributyrin, and does not grow on MacConkey's agar.

(Neisseria canis, NCI Thesaurus)

This species is acid fast, does not grow on MacConkey agar, catalase, urease and niacin positive, and negative for nitrite reduction and Tween 80 hydrolysis.

(Mycobacterium simiae, NCI Thesaurus)

This species is acid fast, nonmotile, is unable to grow well in glycerol agar, produces pigment and has a slower growth rate than Mycobacterium fortuitum.

(Mycobacterium flavescens, NCI Thesaurus)