Itch

n.
  1. (Med.) An eruption of small, isolated, acuminated vesicles, produced by the entrance of a parasitic mite (the Sarcoptes scabei), and attended with itching. It is transmissible by contact.
  2. Any itching eruption.
  3. A sensation in the skin occasioned (or resembling that occasioned) by the itch eruption; -- called also scabies, psora, etc.
  4. A constant irritating desire.
    5. Baker's itch .
    See under Baker.
    Barber's itch ,
    sycosis.
    Bricklayer's itch ,
    an eczema of the hands attended with much itching, occurring among bricklayers.
    Grocer's itch ,
    an itching eruption, being a variety of eczema, produced by the sugar mite (Tyrogluphus sacchari).
    Itch insect (Zoöl.),
    a small parasitic mite (Sarcoptes scabei) which burrows and breeds beneath the human skin, thus causing the disease known as the itch. See Illust. in Append.
    Itch mite . (Zoöl.)
    Same as Itch insect, above. Also, other similar mites affecting the lower animals, as the horse and ox.
    Sugar baker's itch ,
    a variety of eczema, due to the action of sugar upon the skin.
    Washerwoman's itch ,
    eczema of the hands and arms, occurring among washerwomen.