permit to workpermitionpermitspermittantpermittedpermitted food additivespermitted preservativespermitted systempermitted turningpermitteepermittingpermittivitypermiumpermlompermselectivitypermutablepermutationpermutation grouppermutation matrixpermutation representationpermutation representation of a grouppermutation testspermutational isomerizationpermutationspermutepermuted ppermutingpernasal swabpernatalperneperniciouspernicious anemiapernicious mental illnessesperniciouslyperniciousnesspernicketypernioperniosispernitentpernoctationperomeliaperominantperomyscus polionotusperonality developementperonealperoneal muscleperoneal muscular atrophyperoneusperoneus longus muscleperonism