[f. TONGUE sb. + -LET.] A little tongue or tongue-like object; spec. a. in Entom. = LIGULA 1 b; b. tongue-worm (b): see TONGUE sb. 16 (Cent. Dict., 1891).

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1840.  E. Wilson, Anat. Vade M. (1842), 384. The Linguetta laminosa is a thin tonguelet of grey substance, marked by transverse furrows, which extend forwards … from the grey substance of the cerebellum.

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1840.  trans. Cuvier’s Anim. Kingd., 529. The tonguelet consists of two small hairy setæ, extending beyond the large horny mentum.

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1866.  J. K. Lord, in Intell. Observ., No. 48. 431. In this tube is the tonguelet [of a Cicada].

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1878.  Browning, Poets Croisic, v. I shall not sulk If yonder greenish tonguelet [of flame] licked from brass Its life.

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