(ecology) A sharing of the same environment by two organisms where one species benefits and the other is unaffected. An example is barnacles on whales. / The act of eating together; table fellowship.

plural of commensalism

(ecology) Of a form of symbiosis in which one organism derives a benefit while the other is unaffected. / Eating at the same table.

(ecology) An organism partaking in a commensal relationship. / One who eats at the same table.

plural of commensal

The act of eating together.

(obsolete) commensality

In a commensal manner.

plural of commensality