Definitions for yammerˈyæm ər
Random House Webster's College Dictionary
yam•mer*ˈyæm ər
(v.i.)to whine or complain.
Category: Informal
to talk loudly and persistently.
Category: Informal
(v.t.)to utter clamorously and persistently, esp. in complaint.
Category: Informal
(n.)the act or noise of yammering.
Category: Informal
* Informal..
Origin of yammer:
1275–1325; < MD jam(m)eren, r. OE gēomrian to complain, der. of gēomor sad, c. OS, OHG jāmar
yam′mer•ing•ly(adv.)
Princeton's WordNet
howl, wrawl, yammer, yowl(verb)
cry loudly, as of animals
"The coyotes were howling in the desert"
whine, grizzle, yammer, yawp(verb)
complain whiningly
Wiktionary
yammer(Noun)
The act or noise of yammering.
yammer(Noun)
A loud noise.
yammer(Noun)
One who yammers.
yammer(Verb)
To complain peevishly.
yammer(Verb)
To talk loudly and persistently.
yammer(Verb)
To repeat on and on, usually loudly or in complaint.
yammer(Verb)
To make an outcry; to clamor.
Origin: Probably from jammeren cognate and reinforced by yeoumeren, from geomrian, from geomor possibly imitative in origin and akin to German Jammer.
Citation
Use the citation below to add this definition to your bibliography:
"yammer." Definitions.net. STANDS4 LLC, 2013. Web. 25 May 2013. <http://www.definitions.net/definition/yammer>.

