Houseleek definitions

hous'lēk'
Any of various succulent plants of the genus Sempervivum of Eurasia, having leaves arranged in rosettes and pinkish flowers, especially the common houseleek (S. tectorum). Houseleeks are often cultivated as garden plants and have traditionally been grown on roofs in Europe.
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Any of several succulent plants, of the genus Sempervivum, having a rosette of fleshy leaves.
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Origin of houseleek

Probably from an Old English *hūslēac, corresponding to house +‎ leek. Cognate with Dutch huislook, German Hauslauch, Danish husløg, Swedish huslök.