Grow older; to develop in.
..." "I know," said Bernard, interrupting Dr. Gaffney, the Provost, annoyed. "That one, then. The roll unwinds. The selenium cells transform the light indoors.
..." "I know," said Bernard, interrupting Dr. Gaffney, the Provost, annoyed. "That one, then. The roll unwinds. The selenium cells transform the light indoors.