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cross-sterile

[kraws-ster-uh l or, esp. British, -ahyl, kros-]
adjective
  1. incapable of reproducing due to hybridization.
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Origin of cross-sterile

First recorded in 1945–50
Related formscross-ste·ril·i·ty, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018