silver Y
Y Y (w[imac]), n.; pl. {Y's} (w[imac]z) or {Ys}. Something shaped like the letter Y; a forked piece resembling in form the letter Y. Specifically: (a) One of the forked holders for supporting the telescope of a leveling instrument, or the axis of a theodolite; a wye. (b) A forked or bifurcated pipe fitting. (c) (Railroads) A portion of track consisting of two diverging tracks connected by a cross track. [1913 Webster]

{Y level} (Surv.), an instrument for measuring differences of level by means of a telescope resting in Y's.

{Y moth} (Zo["o]l.), a handsome European noctuid moth {Plusia gamma}) which has a bright, silvery mark, shaped like the letter Y, on each of the fore wings. Its larva, which is green with five dorsal white species, feeds on the cabbage, turnip, bean, etc. Called also {gamma moth}, and {silver Y}. [1913 Webster]


The Collaborative International Dictionary of English. 2000.

Look at other dictionaries:

  • silver Y — noun A noctuid moth (Autographa gamma) with Y shaped markings on the forewings • • • Main Entry: ↑silver …   Useful english dictionary

  • Silver Y — Taxobox name = Silver Y image width = 240px regnum = Animalia phylum = Arthropoda classis = Insecta ordo = Lepidoptera familia = Noctuidae subfamilia = Plusiinae genus = Autographa species = A. gamma binomial = Autographa gamma binomial authority …   Wikipedia

  • silver y moth — noun Usage: capitalized Y Etymology: silver (II) + y + moth : a moth of the genus Plusia having a silvery Y on the fore wings; especially : gamma moth …   Useful english dictionary

  • silver Y moth — noun see gamma moth …   Useful english dictionary

  • Silver the Hedgehog — (en japonés シルバー・ザ・ヘッジホッグ , Shirubā za Hejjihoggu) es un personaje de la saga de videojuegos Sonic the Hedgehog. Su primera aparición fue en el juego Sonic the Hedgehog, para la consolas Xbox 360 y PlayStation 3. También está presente en Sonic… …   Wikipedia Español

  • Y — (w[imac]), n.; pl. {Y s} (w[imac]z) or {Ys}. Something shaped like the letter Y; a forked piece resembling in form the letter Y. Specifically: (a) One of the forked holders for supporting the telescope of a leveling instrument, or the axis of a… …   The Collaborative International Dictionary of English

  • Y level — Y Y (w[imac]), n.; pl. {Y s} (w[imac]z) or {Ys}. Something shaped like the letter Y; a forked piece resembling in form the letter Y. Specifically: (a) One of the forked holders for supporting the telescope of a leveling instrument, or the axis of …   The Collaborative International Dictionary of English

  • Y moth — Y Y (w[imac]), n.; pl. {Y s} (w[imac]z) or {Ys}. Something shaped like the letter Y; a forked piece resembling in form the letter Y. Specifically: (a) One of the forked holders for supporting the telescope of a leveling instrument, or the axis of …   The Collaborative International Dictionary of English

  • Y's — Y Y (w[imac]), n.; pl. {Y s} (w[imac]z) or {Ys}. Something shaped like the letter Y; a forked piece resembling in form the letter Y. Specifically: (a) One of the forked holders for supporting the telescope of a leveling instrument, or the axis of …   The Collaborative International Dictionary of English

  • y moth — noun Usage: usually capitalized Y Etymology: so called from its y shaped marking : silver y moth …   Useful english dictionary

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