Definitions of lemming
  1. noun
    any of various short-tailed furry-footed rodents of circumpolar distribution
    see moresee less
    show 7 types...
    hide 7 types...
    European lemming, Lemmus lemmus
    notable for mass migrations even into the sea where many drown
    Lemmus trimucronatus, brown lemming
    of northwestern Canada and Alaska
    gray lemming, grey lemming, red-backed lemming
    Old World lemming
    pied lemming
    North American lemming having a white winter coat and some claws much enlarged
    Synaptomys cooperi, southern bog lemming
    of low bogs and meadows of northeastern and central United States and southern Canada
    Synaptomys borealis, northern bog lemming
    of wet alpine and subalpine meadows of Canada and Alaska
    Dicrostonyx hudsonius, Hudson bay collared lemming
    of northern Canada
    type of:
    gnawer, rodent
    relatively small placental mammals having a single pair of constantly growing incisor teeth specialized for gnawing
Word Family