The ability of a solution to cause a cell within it to gain or lose water. turgor. when a plan cell is placed in a hypotonic solution water moves in to the cell and to the central vacuole the cell's protoplast expands. The cell wall restricts expansion resulting in tugor pressure. diffusion. when molecules move from high concentration to low concentration.
For other uses, see Anemia (disambiguation). Anemia, also spelled anaemia, is usually defined as a decrease in the total amount of red blood cells (RBCs) or hemoglobin in the blood. It can also be defined as a lowered ability of the blood to carry oxygen.
Medical Definition of anemia. 1  1: a condition in which the blood is deficient in red blood cells, in hemoglobin, or in total volumeâsee aplastic anemia, hyperchromic anemia, hypochromic anemia, megaloblastic anemia, microcytic anemia, pernicious anemia, sickle-cell anemia; compare oligocythemia. 2  2: ischemia.