diagrammetern.
/dʌɪəˈɡramɪtə/ (See quot. 1876.)
ΚΠ
1876 Catal. Special Loan Coll. Sci. Apparatus S. Kensington Mus. §270 Holt's Diagrammeter. This instrument is specially made for measuring the ordinates of indicator-diagrams..and is used much after the manner of a parallel rule.
This entry has not yet been fully updated (first published 1895; most recently modified version published online September 2018).
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n.1876