agar /āˈgär/ or agar-agar /āˈgär-āˈgär/

1. A jelly prepared from seaweeds of various kinds used in bacteria-culture, medicine, glue-making, silk-dressing, and cooking
2. Any of the seaweeds concerned

• bluebacks
• blueback salmon
• blue bag
• blue bags
• Bluebeard
• Bluebeards
• bluebell
• bluebells
• Blue Beret
• blueberries
• blueberry
• bluebird
• bluebirds
• blue-black
• blue-blacks
• Blue Blanket
• blue blood
• blue-blooded
• blue bloods
• blue-bonnet
• blue-bonnets
• blue book
• blue books
• bluebottle
• bluebottles