| sow thistle (sou) n. Any of various plants of the genus Sonchus, especially S. oleraceus of Eurasia, having prickly leaves and rayed, yellow flower heads. |
sow thistle [saʊ]
n
(Life Sciences & Allied Applications / Plants) any of various plants of the Old World genus Sonchus, esp S. oleraceus, having milky juice, prickly leaves, and heads of yellow flowers: family Asteraceae (composites) Also called milk thistle (NZ) puha (NZ) rauriki
[from sugethistel, perhaps variant of Old English thugethistel, thuthistel thowthistle, a dialect name of the sow thistle. See sow2, thistle]
ThesaurusLegend: Synonyms Related Words Antonyms
| Noun | 1. |  sow thistle - any of several Old World coarse prickly-leaved shrubs and subshrubs having milky juice and yellow flowers; widely naturalized; often noxious weeds in cultivated soilgenus Sonchus, Sonchus - sow thistles Sonchus oleraceus, milkweed - annual Eurasian sow thistle with soft spiny leaves and rayed yellow flower heads |
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