plural of botanic

The science of botany.

A chemical reaction in which an aqueous solution containing glucose, sodium hydroxide and methylene blue turns from colourless to blue upon shaking and then loses its colour after a while. With further shaking, the cycle can be repeated several times.

plural of Both respirator

A surname.

(historical) An early form of iron lung.

plural of bottom-feeder

(Australia, New Zealand, colloquial, informal) Synonym of fair suck of the sauce bottle

plural of bottle episode

(originally US, television) An episode of a television series designed to be inexpensive and restricted in its use of sets, effects, cast members, etc.