hum

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hum

 [hum]
a low, steady, prolonged sound.
venous hum a continuous blowing, singing, or humming murmur heard on auscultation over the right jugular vein in the sitting or erect position; it is an innocent sign that is obliterated on assumption of the recumbent position or on exerting pressure over the vein.

hum

(hŭm),
A low continuous murmur.
[echoic]

hum

(hum) a low, steady, prolonged sound.
venous hum  a continuous blowing, singing, or humming murmur heard on auscultation over the right jugular vein in the sitting or erect position; it is an innocent sign that is obliterated on assumption of the recumbent position or on exerting pressure over the vein.

hum

(hŭm)
A low continuous murmur.
References in periodicals archive ?
Humming-bird hawk-moths had their best year on record in the UK, with Butterfly Conservation receiving 9,000 reports of sightings, outstripping the previous record of 6,500.
STEVE FLETCHER called after enjoying a humming-bird hawkmoth in Woolton on Tuesday, March 27, while Neill Hunt also sawone in his Southport garden this week.
Appell's search for rare and unusual specimens also took him on a noteworthy expedition to Crowley's Nursery, where bamboos surround ponds in which aquatic plants thrive, old roses clamber up trellises and arbors, and a butterfly/hummingbird garden flutters with over 21 varieties of the winged creatures, including the ruby-throated humming-bird.
Herman Geiger-Torel had hoped to cap his career as the Canadian Opera Company's first general director by mounting Richard Wagner's Ring cycle in Toronto back in the 1970s, but with Das Rheingold left unproduced, it remained for his successor's successor's successor to revisit the challenge of producing Canada's first Ring on the imperfectly accommodating Humming-bird Centre stage.
And the humming-bird hawkmoth of southern Europe was seen in Glasgow.
the mountain stream's own darling, the humming-bird of blooming waters, loving rocky ripple-slopes and sheets of foam as a bee loves flowers.