( v. i. )
To utter words indistinctly or with a low voice and lips partly closed; esp., to utter indistinct complaints or angry expressions; to grumble; to growl.
( v. i. )
To utter words indistinctly or with a low voice and lips partly closed; esp., to utter indistinct complaints or angry expressions; to grumble; to growl.
Webster's Revised Unabridged English Dictionary. Пересмотренный полный словарь английского языка Webster. 2012