Bacterial plaque and Plaque

Bacterial plaque noun - A film of mucus and bacteria deposited on the teeth that encourages the development of dental caries.

Plaque and bacterial plaque are semantically related. In some cases you can use "Plaque" instead a noun phrase "Bacterial plaque".

Plaque noun - A memorial made of brass.

Bacterial plaque and plaque are semantically related. Sometimes you can replace phrase "Bacterial plaque" with "Plaque", this terms are similar.