Webster's 1828 Dictionary
PENTADACTYL
n.[Gr. five, and finger. ] 1. In botany, a plant called five fingers; a name given to the Ricinus or Palma Christi, from the shape of its leaf.
2. In ichthyology, the five fingered fish; a name given to a fish common in the East Indian seas, which has five black streaks on each side resembling the prints of five fingers.
Webster's 1913 Dictionary
PENTADACTYL; PENTADACTYLE
Pen `ta *dac "tyl, Pen `ta *dac "tyle, a. Etym: [Gr. Penta-, and Dactyl. ]
1. (Anat. )
Defn: Having five digits to the hand or foot.
2. Having five appendages resembling fingers or toes.
PENTADACTYLOID
Pen `ta *dac "tyl *oid, a. Etym: [Pentadactyl + -oid.] (Anat. )
Defn: Having the form of, or a structure modified from, a pentadactyl limb.
New American Oxford Dictionary
pentadactyl
pen ta dac tyl |ˌpentəˈdaktl ˌpɛntəˈdæktl | ▶adjective Zoology (of a vertebrate limb ) having five toes or fingers, or derived from such a form, as characteristic of all tetrapods. DERIVATIVES pen ta dac tyl y noun ORIGIN early 19th cent.: from penta- ‘five ’ + Greek daktulos ‘finger. ’
Oxford Dictionary
pentadactyl
pentadactyl |ˌpɛntəˈdaktɪl | ▶adjective Zoology (of a vertebrate limb ) having five toes or fingers, or derived from such a form, as characteristic of all tetrapods. DERIVATIVES pentadactyly |-ˈdaktɪli |noun ORIGIN early 19th cent.: from penta- ‘five ’ + Greek daktulos ‘finger ’.
The Wordsmith Dictionary