Modifies a noun

• flora: Second, a number of the bacterial species which comprise the commensal flora can also cause disease.

• bacterium: Oral candida is common in new-born babies because they do not have commensal bacteria in their mouths and can be infected during birth.

• organism: They form a group of commensal organisms whose presence is essential to our health.

• relationship: However, the most spectacular of the commensal relationships is the sharing of the shell with a species of sea anemone.

• rodent: The occurrence of commensal rodents in English dwellings as revealed by the 1996 English house condition survey.

• yeast: Certain healthy and also affected individuals can develop cell-mediated immune responses to the antigens associated with this commensal yeast.