Webster's Revised Unabridged Dictionary · 1913

Amphiaster

Amphiaster ({not transcribed}) , noun

[New Latin, from Greek 'amfi` + 'asth`r a star.]

(Biology) The achromatic figure, formed in mitotic cell-division, consisting of two asters connected by a spindle-shaped bundle of rodlike fibers diverging from each aster, and called the spindle.