zinc sulphate

noun

a colourless soluble crystalline substance usually existing as the heptahydrate or monohydrate: used as a mordant, in preserving wood and skins, and in the electrodeposition of zinc. Formula: ZnSO 4Also called: white vitriol, zinc vitriol

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What does “barren” mean?
a cylindrical wooden container with slightly bulging sides.
Worn down by dullness, tedious repetition.
unproductive; unfruitful
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Words nearby zinc sulphate

zinc oxide, zinc phosphide, zinc stearate, zinc sulfate, zinc sulfide, zinc sulphate, zinc white, zindabad, Zinder, 'zine, zineb
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012