DuckCorp Dico

Found one definition

1.                 From Japanese-English FreeDict Dictionary ver. 0.1:
                   
   
   
                   
                     
   生唾 /(en)tʃˈaɪniːz(ja)lˈe̞tə (en)tʃˈaɪniːz(ja)lˈe̞tə/, 生つば /tsˈɯᵝbä/, なまつば /nˌämätsˈɯᵝbä/
   (noun (common) (futsuumeishi))
   saliva (in one's mouth)