Definition of Amalthea in US English:

Amalthea

proper noun

Astronomy
  • Satellite V of Jupiter, the third closest to the planet. It is reddish in color and heavily cratered, with a diameter of 106 miles (170 km).

Origin

From the name of a goat in Greek Mythology, which suckled the infant Zeus.

Pronunciation

Amalthea

/ˌæməlˈθiə//ˌaməlˈTHēə/