pyrone
/ˈpʌɪrəʊn/Chemistry
noun
Each of two unsaturated, heterocyclic ketones having the formula C5H4O2, specifically γ-pyrone.
- The pyrones are keto derivatives of the pyrans; the commoner isomer, γ-pyrone, is a colourless, basic, crystalline solid, CH=CHOCH=CHCO..
Origin
Late 19th century; earliest use found in Journal of the Chemical Society. From pyro- + -one, after German Pyron.
- safety lamp
- safety lantern
- safety lock
- safety man
- safety match
- safety net
- safety officer
- safety paper
- safety pin
- safety play
- safety plug
- safety razor
- safety representative
- safety rod
- safety switch
- safety touchdown
- safety tube
- safety valve
- safety valving
- safety vault
- safety vent
- safety zone
- safe ward
- safeword
- safe word