osmotic pressure

the pressure required to prevent the passage of water (or other solvents) through a semipermeable membrane (e.g., a cell membrane) from an area of low concentration of solute to an area of higher concentration. It results from the spontaneous movement of molecules that occurs when different concentrations are separated by a semipermeable membrane.

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Psychology term of the day

November 22nd 2024

morbid obesity

the condition of having a body mass index over 39 or weighing 50% to 100% over one’s ideal weight. Morbid obesity is associated with diabetes mellitus, heart disease, joint pain, sleep apnea, and stroke.