noun (n)

• a metrical unit with stressed-unstressed-unstressed syllables(noun.communication)

  source: wordnet30
• a finger or toe in human beings or corresponding body part in other vertebrates(noun.body)

  Synonym:
  digit
  

  source: wordnet30
• A poetical foot of three sylables (— ⌣ ⌣), one long followed by two short, or one accented followed by two unaccented; as, L. tëgm&ibreve;n&ebreve;, E. mer\b6ciful; -- so called from the similarity of its arrangement to that of the joints of a finger.(noun)

  source: webster1913