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agar

agar

3 6.8
A jelly like substance from seaweed used to grow bacteria and thicken food
  • noun
  • /ˈɑːɡər/
  • Specialized
translation icon : agar
  • So the the plants that we grow for reintroduction are grown on nutrient Agar without a fungus.
  • agar plates
  • nutrient agar
  • agar medium

He let his Agar plates get moldy.

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Examples

  • On the woodpile, the good doctor set out petri dishes full of agar to the open air.

    Fiction book (1996)
  • Initial pretreatment isolates were grown on Lowenstein-Jensen agar slants and identified to species in accordance with World Health Organization recommendations.

    Academic text (2013)
  • External pressure was applied by another identical watch glass to human skin mounted over the agar layer.

    Academic text (2001)
  • Before you put the heat on, we're going to combine Agar Agar and our water in a saucepan, so just pour it in.

  • No changes in color were obtained in the tests done on nutrient agar or CD agar.

    Academic text (1995)
  • Table 3: Test paper color reactions for 21 bacillus strains on three different agar media.

    Academic text (1995)
  • Preparation of bacterial cultures: Bacteria were grown in nutrient agar broth for 24 hours at 37°C.

    Academic text (2015)
  • Serial dilution of the recovered spores was followed by surface-plating on tryptic soy agar (TSA) (DIFCO Laboratories).

    Academic text (2003)
  • We added the agar to the mixture to help it thicken properly.

  • The scientist prepared cultures on agar plates to study bacterial growth.

Synonyms

agar-agar
vsagar
  • Specialized
1 7.2

A jelly made from seaweed that makes food firm and helps grow bacteria in labs

has the same meaning but is the shorter common name

Compounds

agar-agar
  • Specialized
1 7.2

A jelly made from seaweed that makes food firm and helps grow bacteria in labs

blood agar
  • Specialized
5.6

A jelly made with blood that labs use to grow bacteria so scientists can see and identify them

nutrient agar
  • Specialized
5.0

A jelly with food that scientists use to grow bacteria in a lab

How Thick

carrageenan
  • Specialized
1 8.6
xanthan
  • Specialized
2 5.6
agar
  • Specialized
3 6.8
gelatin
  • Specialized
10 3.2
starch
9 3.7
water
1.0

Surface Forms

agar singular
agars plural

Etymology

Agar comes from Malay agar-agar, the local name for a seaweed 'jelly' used in Asian cooking, which English picked up through trade. Because this seaweed makes a firm 'jelly', cooks use agar like 'gelatin' and scientists use it to grow bacteria, so today agar means the seaweed jelly used in labs and food.