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.
Noun. 1. grinning-a facial expression characterized by turning up the corners of the mouth; usually shows pleasure or amusement. grin, smile, smiling. facial expression, facial gesture-a gesture executed with the facial muscles. simper-a silly self-conscious smile.