Definition of epilobium
1 capitalized : a large genus of widely distributed herbs (family Onagraceae) with pink or rarely yellow flowers, slender lanceolate leaves, and seeds with a silky coma
2 plural -s : any plant of the genus Epilobium : willow herb 1
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Origin and Etymology of epilobium
New Latin, from epi- + Greek lobos lobe, pod + New Latin -ium
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