A metrical foot in poetry consisting of one stressed syllable followed by two unstressed syllables. The poet used a dactyl to create a rhythmic pattern in the verse.
Anatomy (rare): a finger or toe; a digit. The x-ray revealed a fracture in the third dactyl of his left foot.
Zoology: the clawed terminal segment of the limb of a crustacean, arachnid, or similar arthropod. The crab’s dactyl is sharply curved for gripping prey.
Greek Mythology: one of a group of mythical beings of Mount Ida, credited with the discovery of metalworking. According to the legend, the Dactyls taught humans how to forge iron.