(obsolete) Unmotivated by personal interest; unbiased, disinterested. / Not interested; indifferent, not concerned.

(mineralogy) A triclinic-pedial dark blue mineral containing arsenic, cobalt, copper, hydrogen, magnesium, nickel, oxygen, and silicon.

(quantum mechanics, medical imaging) A loss of the synchronization or coherence caused by a perturbation, upon which the system returns to its state before perturbation.

(chemistry, archaic) astatine