What are the difference between hypertonic, isotonic, and hypotonic?

hyper- over

hypo- below

iso- equal

Ex: a cell with a semipermeable membrane is put in the following solutions

Hypertonic solution;

this means that the solute is more concentrated on the outside of a cell

water would move out of the cell to dilute to  the concentration

the cell would shrivel

Hypotonic solution:  

this would mean solute is more concentrated on the inside of a cell

water would move into the cell

the cell could burst or lyse

Isotonic solution:

the solute is in equal concentrations inside and outside of the cell

it is in equilibrium

water still moves in and out of the cell though

"1. it should be, it has been for about 20 years, and it's really not much different in the end than breeding animals to have particular traits. there are always concerns about genetically engineered animals/plants affecting the environment in unexpected negative ways, but i can't think of an example where the fears didn't turn out to be baseless.  

first, as you point out, it would be a great advance in pharmacology, to be able to tailor drugs and their doses to me. the pros involve better medical treatment. the cons involve privacy issues like insurance companies denying coverage to people with genetic risk factors. looking at dna markers wouldn't affect the frequency of genetic diseases, but it would allow detection of them earlier. and ok, actually i suppose that if people used this information to avoid having children with genetic diseases, some might decrease in frequency."