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Definition 2024

tenacle ‎(plural tenacles)

(rare) A stalk or shoot by which a plant holds itself up, or by which climbing plants attach themselves to surfaces.
- 1658: And Ivy divided from the root, we have observed to live some years, by the cirrous parts commonly conceived but as tenacles and holdfasts unto it. — Sir Thomas Browne, The Garden of Cyrus (Folio Society 2007, p. 198)