If a cell is surrounded by hypertonic solution, then water will move OUT of the cell by osmosis because there is a higher concentration of water inside the cell compared to outside (where there is lots of dissolved salt, etc.) A cell in hypertonic solution will shrink.
Definition of simper for English Language Learners. : 1  to smile in a way that is not sincere or natural. : 2  to say (something) in a way that is not sincere or natural.
n (Psychol) any stimulus evoking an unlearnt response, esp. in the context of classical conditioning, in which the conditioned stimulus is followed by the unconditioned one. English Collins Dictionary-English Definition & Thesaurus &nbsp. See also: conditioned stimulus, unconditioned stimulus, stim, simul.