Scottish National Dictionary (1700–)
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About this entry:
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.
NASMYTH. Astron. A large depression in the North-east corner of the moon, named after James Nasmyth (1808–90), of Edinburgh, engineer, inventor of the steamhammer, and astronomer.