
• (n.) A short or weak utterance; a faint or feeble sound, as that heard on separating the lips in pronouncing p or b.
Found on 
http://thinkexist.com/dictionary/meaning/vocule/
 Voc'ule  noun
Voc'ule  noun [ Latin 
 vocula , dim. of 
 vox , 
 vocis , voice.] 
 (Phon.) A short or weak utterance; a faint or feeble sound, as that heard on separating the lips in pronouncing 
 p or 
 b . 
 Rush. -- 
 Voc'u*lar  adjective Found on 
http://www.encyclo.co.uk/webster/V/33
  No exact match found.