When a doctor orders laboratory tests, like blood tests for disease or for nutritional status, the doctor is the referring doctor: he refers the patient to the lab. In medicine, it approximately means sends, because the doctor is sending the patient to the lab, or other doctor, or . . .
Definitions for still waters run deep. Here are all the possible meanings and translations of the word still waters run deep. Wiktionary(0.00 / 0 votes)Rate this definition: still waters run deep(Proverb) A person with a calm appearance has, or may have, considerable inner emotion, character, or intellect.
Defining Normal Depth. 1  Normal depth is the depth of flow in a channel or culvert when the slope of the water surface and channel bottom is the same and the water depth remains constant. Normal depth occurs when gravitational force of the water is equal to the friction drag along the culvert and there is no acceleration of flow.