hypoosmotic solution A solution whose osmotic
pressure is less than that of another solution.
hypothesis The formal declaration of the possible
explanation of a set of observations that needs to be
tested and proved.
hypotonic solution A solution where solute concen-
tration is low enough to cause water to move into cells
via osmosis.
hypsochromic shift Shift of a spectral band to
higher frequency or shorter wavelength upon substitu-
tion or change in medium. It is informally referred to as
“blue shift.”
See alsoBATHOCHROMIC SHIFT.hypsochromic shift 135