We found 4 dictionaries that define the word PtBS:

Miscellaneous (2 matching dictionaries)

1. PTBS: Acronym Finder
2. AbbreviationZ (No longer online)

Science (1 matching dictionary)

3. Glossary of chlorine and other chemical related terms (No longer online)

Slang (1 matching dictionary)

4. PTBS, PTB's: Urban Dictionary

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