Hyperthermia
The medical term for lack of body thermoregulation is "hypothermia," which refers to a condition where the body loses heat faster than it can produce it, leading to a dangerously low body temperature. Symptoms can range from shivering and confusion to coma and even death if not treated promptly.
Thermoregulation is the term we give to "temperature control" or the like. For example, the human body likes to run at an internal temperature of 98.6 degrees Fahrenheit. And we have mechanisms within us that control our internal temperature. The biochemical structures that accomplish this are collectively termed the thermoregulation mechanism of the body. Other animals have them, too, but some lack them - like reptiles. A link is provided below.
Objective is the medical term meaning without emotion.
Wernicke's encephalopathy is the medical term meaning degenerative brain disorder caused by lack of thiamine.
Hypocapnia is the medical term meaning a deficiency in carbon dioxide levels in the blood. This can occur due to hyperventilation or certain medical conditions affecting lung function.
elimination
atrophy
Clubbing is the medical term for the changes in fingernails or toenails associated with chronic lack of oxygen.
Anesthesiologist
If you are referring to lack of or poor muscle tone then "hypotonia" is the correct medical term for low tone, and "atony" for absent tone.
Agenesis is the medical term meaning absent development of an organ or tissue. Atresia is the medical term meaning congenital absence or development of a tube.
Encopresis is the medical term meaning incontinence of stool. If the patient has never had bowel control, this condition will be called primary encopresis.
Hypochromia (as in hypochromic anemia) is the medical term meaning deficiency in hemoglobin.