a neutral and extremely short-lived meson having a mass 1532 times that of the electron and a mean lifetime of 6.6 X 10 -23 seconds.
A neutral meson having a mass 1,532 times that of the electron and an average lifetime of 6.6 × 10-23 seconds. See Table at subatomic particle.
- Omega minus
noun 1. an unstable negatively charged elementary particle, classified as a baryon, that has a mass 3273 times that of the electron
- Omega-minus particle
[oh-mee-guh-mahy-nuh s, -mey-, oh-meg-uh-] /oʊˈmi gəˈmaɪ nəs, -ˈmeɪ-, oʊˈmɛg ə-/ noun, Physics. 1. a baryon with strangeness −3, isotopic spin 0, and negative charge; predicted from the mathematics of the Eightfold Way and subsequently discovered. Symbol: Ω −.
[om-lit, om-uh-] /ˈɒm lɪt, ˈɒm ə-/ noun 1. eggs beaten until frothy, often combined with other ingredients, as herbs, chopped ham, cheese, or jelly, and cooked until set. n. 1610s, from French omelette (16c.), metathesis of alemette (14c.), from alemele “omelet,” literally “blade (of a knife or sword),” probably a misdivision of la lemelle (mistaken […]
[oh-men-tuh m] /oʊˈmɛn təm/ noun, plural omenta [oh-men-tuh] /oʊˈmɛn tə/ (Show IPA). Anatomy. 1. a fold of the peritoneum connecting the stomach and the abdominal viscera forming a protective and supportive covering.