mare's tail

noun

Definition of mare's tail

plural

mare's tails

or

mares' tails

  1. 1a :  a common aquatic plant (Hippuris vulgaris of the family Hippuridaceae) with elongated shoots having dense whorls of narrow finely tapered leavesb :  horseweed 1

  2. 2 :  a cirrus cloud that has a long slender flowing appearance

15th Century

First Known Use of mare's tail

15th century


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WORD OF THE DAY

clearly seen through or understood

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