noun Ag·a·rum \ˈa-gə-rəm\

Definition of Agarum

  1. :  a genus of kelps (family Laminariaceae) inhabiting the colder oceans and having a branched holdfast, a brief stipe, and a lamina with smooth perforated margins

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Origin and Etymology of agarum

New Latin, from English agar

First Known Use: 1853

Seen and Heard

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a brief usually trivial fact

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