Acroamatical :: Acroamatical (a.) Communicated orally; oral; -- applied to the esoteric teachings of Aristotle, those intended for his genuine disciples, in distinction from his exoteric doctrines, which were adapted to outsiders or the public generally. Hence: Abstruse; profound..
Microampere :: Microampere (n.) One of the smaller measures of electrical currents; the millionth part of one ampere.
Roam :: Roam (v. i.) To go from place to place without any certain purpose or direction; to rove; to wander.