Simple past tense and past participle of intercross.(verb)
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Use "intercrossed" in a sentence
"Pocomoke was produced and selected at the National Arboretum by Egolf from five original plants and their progeny that were intercrossed for five generations."
"When Mendel intercrossed short and tall, or blue-flowering and green-flowering, plants using a pair of minute forceps, he stumbled on a startling phenomenon."
"He hid his canoe in the bushes and strode rapidly across the islet, pushing with impatience through the twigs of heavy undergrowth intercrossed over his path."