Hematocrit is a blood test that measures the percentage of the volume of whole blood that is made up of red blood cells. This measurement depends on the number of red blood cells and the size of red blood cells.
Definition of profound for Students. 1  1 : having or showing great knowledge and understanding a profound thinker. 2  2 : very deeply felt profound sorrow.
âº a clear, deep, and sometimes sudden understanding of a complicated problem or situation, or the ability to have such an understanding: [ C ] Hurstonâs writings were recognized for their insights. [ U ] His work shows originality and insight. insightful.