Third-person singular simple present indicative form of hothouse.(verb)
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Use "hothouses" in a sentence
"The author of novels which, with all their luxurious splendour, can only be called hothouses of morbid sentiment, has become the apostle of Italian imperialism, and more than any other single man provoked Italy to throw herself into the great adventure of the War."
"That is to say, in the majority of cases, one may simply employ the water available in hothouses, which is just at the proper temperature."
"'A kind of hothouses, 'said the Owl,' for the culture of feeble moral principles that the Struggle for Existtence has been too much for."