|—vb , hums, humming, hummed|
|1.||(intr) to make a low continuous vibrating sound like that of a prolonged m|
|2.||(intr) (of a person) to sing with the lips closed|
|3.||(intr) to utter an indistinct sound, as in hesitation; hem|
|4.||informal (intr) to be in a state of feverish activity|
|5.||slang (Brit), (Irish) (intr) to smell unpleasant|
|6.||slang (Austral) (intr) to scrounge|
|7.||hum and haw See hem|
|8.||a low continuous murmuring sound|
|9.||electronics an undesired low-frequency noise in the output of an amplifier or receiver, esp one caused by the power supply|
|10.||slang (Austral) a scrounger; cadger|
|11.||slang (Brit), (Irish) an unpleasant odour|
|12.||an indistinct sound of hesitation, embarrassment, etc; hem|
|[C14: of imitative origin; compare Dutch hommelen, Old High German humbal bumblebee]|
"There is a curious bird to see to, called a humming bird, no bigger then a great Beetle." [Thomas Morton, "New English Canaan," 1637]
A low, continuous murmur blended of many sounds.
(from Spanish pepino, "cucumber"), also called Hum (Serbo-Croatian: "hill"), or Haystack Hill, conical hill of residual limestone in a deeply eroded karst region. Pepino hills generally form on relatively flat-lying limestones that are jointed in large rectangles. In an alternating wet and dry climate, high areas become increasingly hard and resistant while low areas are subjected to greater erosion and solution. In some places, such as the Kwangsi area of China, pepino hills may have almost vertical sides and may be riddled with caves. Pepino hills develop to greater heights in regions having subtropical or equatorial rainfall and are then generally called mogotes (Spanish: "hillocks").
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