combining form denoting four. Example: quadrilateral (having four sides).
(More accurately quadriceps femoris) – the large, four-headed muscle occupying the front and sides of the thigh, which straightens the leg at the knee-joint and maintains the body in an upright position. It comprises the rectus femoris, vastus lateralis, vastus intermedius and vastus medialis.... quadriceps
A multi-tentacled box-jellyfish present throughout the Indo-Pacific, and currentlybelieved to be responsible for regular deaths in many Indo-Pacific countries, amounting to many thousands of deaths over time. Looks similar to Chironex, leading to some difficulties in identification.... chiropsalmus quadrigatus
Health Encyclopedia