Eta-carinae



noun
1.
a star and its surrounding nebula in the constellation Carina: the star was brighter than every star except Sirius in the 1840s and now is of seventh magnitude; the nebula is the brightest infrared object in the nighttime sky.

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  • Eta-c meson

    [ey-tuh-see, ee-tuh-] /ˈeɪ təˈsi, ˈi tə-/ noun, Physics. 1. a neutral meson having a mass 5832 times that of the electron and a mean lifetime of approximately 3.1 × 10 -22 seconds.

  • Eta conversion

    theory In lambda-calculus, the eta conversion rule states \ x . f x f provided x does not occur as a free variable in f and f is a function. Left to right is eta reduction, right to left is eta abstraction (or eta expansion). This conversion is only valid if bottom and \ x […]



  • Eta-c particle

    [ey-tuh-see, ee-tuh-] /ˈeɪ təˈsi, ˈi tə-/ noun, Physics. 1. a neutral meson having a mass 5832 times that of the electron and a mean lifetime of approximately 3.1 × 10 -22 seconds. eta-c particle (ā’tə-sē’, ē’tə-) An electrically neutral meson having a mass 5,832 times that of the electron and a mean lifetime of approximately […]

  • Etaerio

    /ɛˈtɪərɪəʊ/ noun 1. an aggregate fruit, as one consisting of drupes (raspberry) or achenes (traveller’s joy)



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