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.
Editors Contribution(0.00 / 0 votes)Rate this definition: simmer. To cook a form of food for a period of time at a low temperature. The soup recipe said after bringing to the boil, simmer on a low heat for 20 mins then leave to cool.