Definition of


  1. (adj, all) having or covered with protective barbs or quills or spines or thorns or setae etc.
    bristly shrubs
    burred fruits
    setaceous whiskers
  2. (adj, all) capable of wounding
    a biting aphorism
    pungent satire

via WordNet, Princeton University

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Swedish astronomer who devised the centigrade thermometer (1701-1744)