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.
TROSSACHIA. Geol. A genus of small fossil nematode worms, parasitic on Cambrian trilobites (1975 A. Lamont in Sc. Jnl. Science I. 202).
[From the Trossachs in Perthshire.]