- n. type of cactus
English contemporary dictionary. 2014.
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cereus — /sear ee euhs/, n., pl. cereuses. 1. any of various plants of the genus Cereus, of the cactus family, having large, usually white, funnel shaped flowers. 2. any of several related, similar plants, esp. of the genera Hylocereus, Nyctocereus, and… … Universalium