One at least of the giant band, Lassen Peak, is semi-active to-day.
For some years, however, scientists will continue to class it as semi-active.
The U.39 was in that buzzing and semi-active condition which to a trained eye is a sure indication that the ship is about to sail.
The crater of Kilauea on the island of Hawaii is still in a semi-active condition.
mid-14c., "given to worldly activity" (opposed to contemplative or monastic), from Old French actif (12c.) or directly from Latin activus, from actus (see act (n.)). As "capable of acting" (opposed to passive), from late 14c. Meaning "energetic, lively" is from 1590s; that of "working, effective, in operation" is from 1640s. Active voice is recorded from 1765 (grammatical use of active dates from mid-15c.).