helotism

== English == === Etymology === From helot +‎ -ism. === Noun === helotism (usually uncountable, plural helotisms) The permanent oppression of a nominally free group of people (zoology) A form of mutualism in which one species is forced to perform tasks for another, for their mutual benefit === See also === dulosis === References === Allaby, Michael. The Concise Oxford Dictionary of Zoology. pg 213. Oxford University Press. New York. 1992.