Turn-off point
noun
in astronomy, the point on the Hertzsprung-Russell diagram at which brighter stars leave the Main Sequence and start evolving into giants
Usage Note
science
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- Turn of phrase
A particular arrangement of words, as in I’d never heard that turn of phrase before, or An idiom can be described as a turn of phrase. This idiom alludes to the turning or shaping of objects (as on a lathe), a usage dating from the late 1600s.
- Turn-of-the-screw
noun 1. a short novel (1898) by Henry James.
- Turn of the tide
A reversal of fortune, as in This last poll marked the turn of the tide, with our candidate gaining a sizable majority. Similarly, to turn the tide means “reverse a situation,” as in The arrival of reinforcements turned the tide in the battle. This idiom transfers the ebb and flow of the ocean’s tides to […]
- Turnon
noun, Slang. 1. something that arouses one’s interest or excitement.
- Turn-on
verb (used with object) 1. to cause to move around on an axis or about a center; rotate: to turn a wheel. 2. to cause to move around or partly around, as for the purpose of opening, closing, or tightening: to turn a key; to turn the cap of a jar. 3. to reverse the […]