noun, plural pa·ral·y·ses [puhraluh-seez] /pəˈræl əˌsiz/.

  1. Pathology.
    1. a loss or impairment of voluntary movement in a body part, caused by injury or disease of the nerves, brain, or spinal cord.
    2. a disease characterized by this, especially palsy.
  2. a state of helpless stoppage, inactivity, or inability to act: The strike caused a paralysis of all shipping.

noun plural -ses (-ˌsiːz)

  1. pathol
    1. impairment or loss of voluntary muscle function or of sensation (sensory paralysis) in a part or area of the body, usually caused by a lesion or disorder of the muscles or the nerves supplying them
    2. a disease characterized by such impairment or loss; palsy
  2. cessation or impairment of activityparalysis of industry by strikes

n.1520s, from Latin paralysis, from Greek paralysis “paralysis, palsy,” literally “loosening,” from paralyein “disable, enfeeble,” from para- “beside” (see para- (1)) + lyein “loosen, untie” (see lose). Figurative use from 1813. Earlier form was paralysie (late 14c., see palsy). Old English equivalent was lyft adl (see left (adj.)) or crypelnes “crippleness.” n. pl. pa•ral•y•ses (-sēz′)

  1. Loss of power of voluntary movement in a muscle through injury or through disease of its nerve supply.
  2. Loss of sensation over a region of the body.

  1. Loss or impairment of voluntary movement or sensation in a part of the body, usually as a result of neurologic injury or disease.

The loss of voluntary movement in a body part. Paralysis results from damage to the nerves that supply the affected part of the body.

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