[1] : The Collaborative International Dictionary of English v.0.48

eighth \eighth\ =atth, a. as. eahtoetha.
   1. next in order after the seventh.
      1913 webster

   2. consisting of one of eight equal divisions of a thing.
      1913 webster

   eighth note mus., the eighth part of a whole note, or
      semibreve; a quaver.
      1913 webster
see also:
eighth note 

[2] : WordNet (r) 2.0

eighth note
     n : a musical note having the time value of an eighth of a whole
         note syn: quaver
see also:
quaver 

Note >> N Words
Note, definition of term: Note
note_pag1.html

Eighth >> E Words
Eighth, definition of term: Eighth
eighth_pag1.html

Musical Note >> M Words
Musical Note, definition of term: Musical Note
musical+note_pag1.html

Half Note >> H Words
Half Note, definition of term: Half Note
half+note_pag1.html

Grace Note >> G Words
Grace Note, definition of term: Grace Note
grace+note_pag1.html

Government Note >> G Words
Government Note, definition of term: Government Note
government+note_pag1.html

Blue Note >> B Words
Blue Note, definition of term: Blue Note
blue+note_pag1.html