phlebotomy

n. removal of blood from the body for diagnostic or therapeutic purposes. This is ordinarily achieved by inserting a needle or catheter into a vein and then applying negative pressure. Through the early and mid-19th century, this practice was known as bloodletting and involved the removal of considerable quantities of blood as a means of curing or preventing disease. Also called venesection.

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Psychology term of the day

November 25th 2024

gender constancy

a child’s emerging sense of the permanence of being a boy or a girl, an understanding that occurs in a series of stages: gender identity, gender stability, and gender consistency.