Mare's"-tail` (?), n.

1.

A long streaky cloud, spreading out like a horse's tail, and believed to indicate rain; a cirrus cloud. See Cloud.

Mackerel sky and mare's-tails Make tall ships carry low sails. Old Rhyme.

2. Bot.

An aquatic plant of the genus Hippuris (H.vulgaris), having narrow leaves in whorls.

 

© Webster 1913.

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