From Longman Dictionary of Contemporary Englishtoothpastetooth‧paste /ˈtuːθpeɪst/ ●●● S3 noun [uncountable] 
DCBa thick substance that you use to clean your teeth
DCBa thick substance that you use to clean your teethExamples from the Corpus
toothpaste• Too much of a hassle to use both toothpaste and mouthwash?• We have got more toothpaste on the market and more misery in our courts than at any time in our existence.• There is no toothpaste in these tubes.• Nurse smelt of toothpaste and disinfectant, and crackled when she moved because her clothes were so stiffly starched.• The answer was that he was missing a tube of toothpaste.• You gave him ten tubes of toothpaste.• He needed some toothpaste so he went into the chemists.• He was often unable to make simple, rapid decisions about what toothpaste to buy or what to wear. 