sensu obsceno
From LSJ
Latin > English
sensu obsceno (sens. obsc.) = with obscene meaning, with an obscene sense, obscene use. Typical abbreviation in older dictionaries for taboo words commonly translated by Latin euphemistic terms like pudenda muliebria. In the Greek version you may see it as "ἐπὶ αἰσχρᾶς σημασίας".