- Henry,1731–1810, English chemist and physicist.
- William, 4th Duke of Devonshire,1720–64, British statesman: prime minister 1756–57.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- tobacco that has been sweetened and pressed into moulds to form bars
C19: perhaps from the name of the first maker
- Henry. 1731–1810, British physicist and chemist: recognized hydrogen, determined the composition of water, and calculated the density of the earth by an experiment named after him
- British chemist and physicist who in 1766 discovered hydrogen, which he called inflammable air. He also demonstrated that it is the lightest of all the gases and established that water is a compound of hydrogen and oxygen. In 1798, Cavendish estimated with great accuracy the mean density of the Earth.
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