Standard Lemma guide

mare's-tail

noun · 5 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

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No pronunciation record was provided for this word.

1

noun

Meaning 1

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

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

Any aquatic plant of the genus Hippuris, having narrow leaves in whorls.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

noun

Meaning 3

Any aquatic plant of the genus Hippuris, having narrow leaves in whorls.

especially, common mare's tail (Hippuris vulgaris)

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

4

noun

Meaning 4

Erigeron canadensis (syn. Conyza canadensis), an annual weed.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: horseweed, Canadian fleabane

Antonyms: none provided

5

noun

Meaning 5

Equisetum, a fern ally.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: horsetail, pipeweed

Antonyms: none provided

History

Etymology

No etymology was provided for this word.

Across languages

Translations

2 source translations are retained for this English entry.

  • Estonian: hobusesaba — water plant of the genus Hippuris
  • Ancient Greek: ἴπνον (ípnon) — water plant of the genus Hippuris