Both Uses of
ion
in
Arrowsmith
- The laboratory in which they talked (Gottlieb pacing the floor, his long arms fantastically knotted behind his thin back; Martin leaping on and off tall stools) was not in the least remarkable—a sink, a bench with racks of numbered test-tubes, a microscope, a few note-books and hydrogen-ion charts, a grotesque series of bottles connected by glass and rubber tubes on an ordinary kitchen table at the end of the room—yet now and then during his tirades Martin looked about reverently.†
Chpt 26
- He was always sterilizing flasks, preparing media of various hydrogen-ion concentrations, copying his old notes into a new book lovingly labeled "X Principle, Staph," and adding to it further observations.†
Chpt 28 *
Definition:
-
(ion) an atom that has acquired an electrical charge by the loss or gain of an electron