fish ladder
noun Date: 1864 a series of pools arranged like steps by which fish can pass over a dam in going upstream

New Collegiate Dictionary. 2001.

Look at other dictionaries:

  • Fish ladder — Ladder Lad der (l[a^]d d[ e]r), n. [OE. laddre, AS. hl[=ae]der, hl[=ae]dder; akin to OFries. hladder, OHG. leitara, G. leiter, and from the root of E. lean, v. [root]40. See {Lean}, v. i., and cf. {Climax}.] 1. A frame usually portable, of wood,… …   The Collaborative International Dictionary of English

  • Fish ladder — Fish Fish, n.; pl. {Fishes} (f[i^]sh [e^]z), or collectively, {Fish}. [OE. fisch, fisc, fis, AS. fisc; akin to D. visch, OS. & OHG. fisk, G. fisch, Icel. fiskr, Sw. & Dan. fisk, Goth. fisks, L. piscis, Ir. iasg. Cf. {Piscatorial}. In some cases,… …   The Collaborative International Dictionary of English

  • fish ladder — ☆ fish ladder n. an ascending series of pools so arranged as to permit fish to leap or swim upward from level to level and thus pass over dams and waterfalls …   English World dictionary

  • Fish ladder — Fishways, most commonly called fish ladders but also known as fish passes and in Australia also referred to as fish steps, are structures on or around artificial barriers (such as dams and weirs) to facilitate diadromous fishes natural migration …   Wikipedia

  • fish ladder — žuvų pralaida statusas T sritis ekologija ir aplinkotyra apibrėžtis Įrenginys arba įtaisas migruojančioms žuvims iš hidrotechninio mazgo žemutinio bjefo praleisti į aukštutinį arba atvirkščiai. atitikmenys: angl. fish ladder; fish pass; fishway… …   Ekologijos terminų aiškinamasis žodynas

  • fish-ladder — fishˈ laddˈer or (N American) fishˈway noun An arrangement of steps and shelters enabling fish to pass around artificial river barriers such as dams, weirs, etc • • • Main Entry: ↑fish …   Useful english dictionary

  • fish ladder — fish′ lad der n. agr. a series of ascending pools constructed to enable salmon or other fish to swim upstream around or over a dam …   From formal English to slang

  • fish ladder — noun A structure built on or around dams or locks to faciliate the migration of fish. Syn: fishway, fish pass, fish steps …   Wiktionary

  • fish ladder — a series of steps with flowing water and pools enabling a fish to circumvent an obstruction such as a dam or waterfall by leaping from step to step. Also called fishway, fish pass …   Dictionary of ichthyology

  • fish-ladder — a series of steps with flowing water and pools enabling a fish to circumvent an obstruction such as a dam or waterfall by leaping from step to step. Also called fishway, fish pass …   Dictionary of ichthyology

  • fish ladder — series of pools that provides passage for fish as to enable migrating fish to swim upstream around a dam …   English contemporary dictionary

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