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[het-uh-ree-siz-uh m]
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noun Biology.
  1. the development of different stages of a parasitic species on different host plants.
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Origin of heteroecism

1870–75; hetero- + Greek oik(ía) “house” + -ism
Related formshet·er·oe·cious [het-uh-ree-shuh s] /ˌhɛt əˈri ʃəs/, adjectivehet·er·oe·cious·ly, adverb
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for heteroecism

Historical Examples

  • This is the only case of heteroecism known in the vegetable kingdom outside the Uredineae.

    Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 3