Dextrorotatary

/ˌdɛkstroʊˈroʊtətɛri/ adjective

Definition

An alternate form of dextrorotary; rotating to the right with respect to polarized light.

Etymology

A variant spelling of dextrorotary, combining dextro- with rotatary (an alternative form of rotary). Both forms exist in older scientific literature.

Kelly Says

Scientific language evolved over time—older chemistry books use different spellings for the same concepts, which is why you might see both 'dextrorotary' and 'dextrorotatary' in old papers!

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