helvetiumn.
/hɛlˈviːʃɪəm/ Chemistry.
Earlier name for astatine n. Cf. also alabamine n. and anglo-helvetium n. (Disused.)
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alabamine1932
helvetium1940
anglo-helvetium1942
astatine1947
At1947
1940 Times 13 Aug. 3/2 The Swiss scientist, Dr. W. Minder, of Berne University, has now succeeded in isolating element ‘85’, which, in honour of his Fatherland, he has named ‘Helvetium’. He has proved that ‘Helvetium’ is produced in small quantity from the decomposition of actinium, which is radio-active.
This entry has not yet been fully updated (first published 1976; most recently modified version published online June 2018).
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n.1940- vine-fly
- vine-fretter
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- vine-garden
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- vine-ground
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- vine-hook
- vine-hopper
- vine-hung
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- vine-inch-worm
- vine-juice
- vine-knife
- vine-laced
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- vine-leaf
- vine-leaf folder
- vine-leaf hopper