| Noun | 1. | Cerastium, genus Cerastium - mouse-eared chickweed Cerastium arvense, field chickweed, field mouse-ear - densely tufted perennial chickweed of north temperate zone Cerastium tomentosum, love-in-a-mist, snow-in-summer - chickweed with hairy silver-grey leaves and rather large white flowers Alpine mouse-ear, Arctic mouse-ear, Cerastium alpinum - widespread in the Arctic and on mountains in Europe herb, herbaceous plant - a plant lacking a permanent woody stem; many are flowering garden plants or potherbs; some having medicinal properties; some are pests |