[1] : The Collaborative International Dictionary of English v.0.48

devonian \devo"nian\, a. geol.
   of or pertaining to devon or devonshire in england; as, the
   devonian rocks, period, or system.
   1913 webster

   devonian age geol., the age next older than the
      carboniferous and later than the silurian; -- called also
      the age of fishes. the various strata of this age
      compose the devonian formation or system, and include the
      old red sandstone of great britain. they contain, besides
      plants and numerous invertebrates, the bony portions of
      many large and remarkable fishes of extinct groups. see
      the diagram under geology.
      1913 webster
see also:
devonian age age of fishes geology 

[2] : The Collaborative International Dictionary of English v.0.48

fish \fish\, n.; pl. fishes fi^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, such as fish joint, fish plate, this word has prob.
   been confused with fish, fr. f. fichea peg.
   1. a name loosely applied in popular usage to many animals of
      diverse characteristics, living in the water.
      1913 webster

   2. zool. an oviparous, vertebrate animal usually having
      fins and a covering scales or plates. it breathes by means
      of gills, and lives almost entirely in the water. see
      pisces.
      1913 webster

   note: the true fishes include the teleostei bony fishes,
         ganoidei, dipnoi, and elasmobranchii or selachians
         sharks and skates. formerly the leptocardia and
         marsipobranciata were also included, but these are now
         generally regarded as two distinct classes, below the
         fishes.
         1913 webster

   3. pl. the twelfth sign of the zodiac; pisces.
      1913 webster

   4. the flesh of fish, used as food.
      1913 webster

   5. naut.
      a a purchase used to fish the anchor.
      b a piece of timber, somewhat in the form of a fish,
          used to strengthen a mast or yard.
          1913 webster

   note: fish is used adjectively or as part of a compound word;
         as, fish line, fish pole, fish spear, fish-bellied.
         1913 webster

   age of fishes. see under age, n., 8.

   fish ball, fish usually salted codfish shared fine, mixed
      with mashed potato, and made into the form of a small,
      round cake. u.s.

   fish bar. same as fish plate below.

   fish beam mech., a beam one of whose sides commonly the
      under one swells out like the belly of a fish. --francis.

   fish crow zool., a species of crow corvus ossifragus,
      found on the atlantic coast of the united states. it feeds
      largely on fish.

   fish culture, the artifical breeding and rearing of fish;
      pisciculture.

   fish davit. see davit.

   fish day, a day on which fish is eaten; a fast day.

   fish duck zool., any species of merganser.

   fish fall, the tackle depending from the fish davit, used
      in hauling up the anchor to the gunwale of a ship.

   fish garth, a dam or weir in a river for keeping fish or
      taking them easily.

   fish glue. see isinglass.

   fish joint, a joint formed by a plate or pair of plates
      fastened upon two meeting beams, plates, etc., at their
      junction; -- used largely in connecting the rails of
      railroads.

   fish kettle, a long kettle for boiling fish whole.

   fish ladder, a dam with a series of steps which fish can
      leap in order to ascend falls in a river.

   fish line, or fishing line, a line made of twisted hair,
      silk, etc., used in angling.

   fish louse zool., any crustacean parasitic on fishes,
      esp. the parasitic copepoda, belonging to caligus,
      argulus, and other related genera. see branchiura.

   fish maw zool., the stomach of a fish; also, the air
      bladder, or sound.

   fish meal, fish desiccated and ground fine, for use in
      soups, etc.

   fish oil, oil obtained from the bodies of fish and marine
      animals, as whales, seals, sharks, from cods' livers, etc.
      

   fish owl zool., a fish-eating owl of the old world genera
      scotopelia and ketupa, esp. a large east indian
      species k. ceylonensis.

   fish plate, one of the plates of a fish joint.

   fish pot, a wicker basket, sunk, with a float attached, for
      catching crabs, lobsters, etc.

   fish pound, a net attached to stakes, for entrapping and
      catching fish; a weir. local, u.s. --bartlett.

   fish slice, a broad knife for dividing fish at table; a
      fish trowel.

   fish slide, an inclined box set in a stream at a small
      fall, or ripple, to catch fish descending the current.
      --knight.

   fish sound, the air bladder of certain fishes, esp. those
      that are dried and used as food, or in the arts, as for
      the preparation of isinglass.

   fish story, a story which taxes credulity; an extravagant
      or incredible narration. colloq. u.s. --bartlett.

   fish strainer.
      a a metal colander, with handles, for taking fish from a
          boiler.
      b a perforated earthenware slab at the bottom of a dish,
          to drain the water from a boiled fish.

   fish trowel, a fish slice.

   fish weir or fish wear, a weir set in a stream, for
      catching fish.

   neither fish nor flesh, neither fish nor fowl fig.,
      neither one thing nor the other.
      1913 webster
see also:
fishes fish piscatorial pisces age of fishes age 
fish ball fish bar fish plate fish beam fish crow 
corvus ossifragus fish culture fish davit davit fish day 
fish duck fish fall fish garth fish glue isinglass 
fish joint fish kettle fish ladder fish line fishing line 
fish louse caligus argulus branchiura fish maw 
fish meal fish oil fish owl scotopelia ketupa 
k. ceylonensis fish pot fish pound fish slice fish slide 
fish sound fish story fish strainer fish trowel fish weir 
fish wear neither fish nor flesh neither fish nor fowl 

[3] : WordNet (r) 2.0

age of fishes
     n : from 405 million to 345 million years ago; dominance of
         fishes and appearance of amphibians and ammonites syn: devonian,
          devonian period
see also:
devonian devonian period 

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