hummock /ˈhʌmək/ noun3 •A small hill; a hillock; a knoll.The west edge of their landing area was swarming with…things. Like wolves or dogs, but with long necks, they moved quickly forward, darting from hummock to hummock — 2020 •A ridge or hill of ice in an ice field. •(Scotland) A fistful. formshummocks