When a cell neither shrinks nor swells when kept in a fluid, the cell in relation to ambient fluid is called

When a cell is in an isotonic solution, the solute concentration is equal inside and outside the cell. Water moves in and out at equal rates, so the cell maintains its normal volume without shrinking or swelling. In hypertonic solutions, cells shrink; in hypotonic solutions, they swell. 'Hyalotonic' is not a valid biological term.