Scottish National Dictionary (1700–)
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First published 1976 (SND Vol. X, list of scientific terms with Scottish connections).
This entry has not been updated since then but may contain minor corrections and revisions.
TUEDIAE. Zool. Specif. name of an Actinia, or sea-anemone from Tweed river-mouth (1832 G. Johnston Mag. Nat. Hist. V. 163).
[Genitive of Lat. form Tuedia, the Tweed. Cf. below.]