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

harvest \har"vest\ haumr"ve^st, n. oe. harvest, hervest,
   as. haerfest autumn; akin to lg. harfst, d. herfst, ohg.
   herbist, g. herbst, and prob. to l. carpere to pluck, gr.
   karpo`s fruit. cf. carpet.
   1. the gathering of a crop of any kind; the ingathering of
      the crops; also, the season of gathering grain and fruits,
      late summer or early autumn.
      1913 webster

            seedtime and harvest . . . shall not cease. --gen.
                                                  viii. 22.
      1913 webster

            at harvest, when corn is ripe.        --tyndale.
      1913 webster

   2. that which is reaped or ready to be reaped or gathered; a
      crop, as of grain wheat, maize, etc., or fruit.
      1913 webster

            put ye in the sickle, for the harvest is ripe.
                                                  --joel iii.
                                                  13.
      1913 webster

            to glean the broken ears after the man
            that the main harvest reaps.          --shak.
      1913 webster

   3. the product or result of any exertion or labor; gain;
      reward.
      1913 webster

            the pope's principal harvest was in the jubilee.
                                                  --fuller.
      1913 webster

            the harvest of a quiet eye.           --wordsworth.
      1913 webster

   harvest fish zool., a marine fish of the southern united
      states stromateus alepidotus; -- called whiting in
      virginia. also applied to the dollar fish.

   harvest fly zool., an hemipterous insect of the genus
      cicada, often called locust. see cicada.

   harvest lord, the head reaper at a harvest. obs.
      --tusser.

   harvest mite zool., a minute european mite leptus
      autumnalis, of a bright crimson color, which is
      troublesome by penetrating the skin of man and domestic
      animals; -- called also harvest louse, and harvest
      bug.

   harvest moon, the moon near the full at the time of harvest
      in england, or about the autumnal equinox, when, by reason
      of the small angle that is made by the moon's orbit with
      the horizon, it rises nearly at the same hour for several
      days.

   harvest mouse zool., a very small european field mouse
      mus minutus. it builds a globular nest on the stems of
      wheat and other plants.

   harvest queen, an image representing ceres, formerly
      carried about on the last day of harvest. --milton.

   harvest spider. zool. see daddy longlegs.
      1913 webster
see also:
carpet harvest fish stromateus alepidotus whiting harvest fly cicada 
locust harvest lord harvest mite leptus autumnalis harvest louse 
harvest bug harvest moon harvest mouse mus minutus harvest queen 
harvest spider daddy longlegs 

[2] : WordNet (r) 2.0

harvest fly
     n : its distinctive song is heard during july and august syn: dog-day
         cicada
see also:
dog-day cicada 

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