algesi-, alge-, alges-, algesio-, algi-, algio-, -algesia, -algesic, -algetic, -algic, -algia, -algy

(Greek: pain, sense of pain; painful; hurting)

Used actively in medical terminology to denote a condition of sensitivity to pain as specified by the combining root.

algesiogenic (adjective) (not comparable)
Concerning the inducement of pain; algogenic: Jane suffered a few days after she received an algesiogenic flu injection and she could hardly lift her arm!
algesiometer (s) (noun), algesiometers (pl)
An instrument for measuring the degree of sensitivity to a painful stimulus; algesimeter; algometer; odynometer: When working with Dr. Smith, Jack learned how to use an algesiometer to accesss the amount of responsiveness to an afflictive, irritating, or very unpleasant stimulus.
algesireceptor (s) (noun), algesireceptors (pl)
In physiology, a pain receptor, usually a bare nerve ending without any organized end organ; nociceptor: In medical school, Tim learned about algesireceptors that received pain stimuli and sent the message of irritation to the brain. .
algesthesia (s) (noun), algesthesias (pl)
The sensibility to pain or the perception of pain; any painful sensation: When Dr. Smith administered a series of pinpricks, Susan experienced algesthesia which was what the doctor was hoping to see.

The prevalence of pain disorders are twice as high in women as in men; when the peak of onset is in the fourth and fifth decades.

The most common sites of pain are the lower back, the head, the face, and the pelvis. It is estimated that low back pain disables seven million Americans and accounts for more than eight million physician office visits each year.

—Robert J. Campbell, Psychiatric Dictionary
Seventh Edition, Oxford University Press, 1996

Man endures pain as an undeserved punishment; a woman accepts it as a natural heritage.

algesthesis (s) (noun), algestheses (pl)
Pain sensation; the ability to perceive pain: After months of therapy, Pasqual was able to experience algesthesis which made him feel as if he were truly on the road to recovery.

When she stubbed her toe on the rock, Katherine exclaimed that she was experiencing severe algesthesis.

Pain exists beyond a simple touch

Pain warns our brains of danger and tells us to act to correct the situation, or to avoid whatever caused the pain.

Is there anyone who does not have vivid memories of burning one's hand on a hot stove and quickly withdrawing it? Pain is a powerful reminder and so we learn to be very careful and to avoid whatever caused it.

Pain does not always warn us of danger. It comes too late for us to avoid a bad sunburn, and a tumor in the brain can grow unnoticed because the tissue within our skulls has no pain receptors.

There are more pain receptors in the skin than other types of skin sensors, but they are not evenly distributed. For example, the neck and eyelids are densely covered, but there are few receptors on the soles of the feet and on the balls of the thumb, which is why a needle prick for a blood sample is often done on one of the thumbs.

—"The Pain Beyond Touch" by Neil McAleer in The body Almanac;
Doubleday & Company, Inc.; Garden City; New York, 1985, page 59.
algetic (adjective), more algetic, most algetic
Painful; relating to something that causes or pertains to pain: When Lynn slipped and fell on the floor, she had a very algetic arm because it was broken!
alginuresis (s) (noun) (no pl)
Painful urination; dysuria: When Jane went to the bathroom, she suffered very much when urinating because it felt like stinging, and her doctor told her that she had a case of alginuresis
algiomotor (noun), more algiomotor, most algiomotor
1. An almost extinct term, relating to an activity produced by pain: When Susan accidentally burned her finger on the stove, an algiomotor contraction of her hand took place.
2. Concerning a pain caused by a movement: Judy lifted the heavy flower pot with her injured arm and it caused an algiomotor shooting throb..
algiomuscular (noun), more algiomuscular, most algiomuscular
Descriptive of a muscular movement caused by the stimulation of pain: The algiomuscular backward jerk of his hand was produced by having his finger burned in the flame.
algiovascular, algovascular (adjective) (not comparable)
Pertaining to some vascular action as a result of a painful stimulation; algiovascular: In medical school, Sam learned about algiovascular movements as a consequence of stimulations of physical agony.
alveoalgia, alveolalgia (s) (noun); alveoalgias; alveolalgias (pl)
A postoperative complication of tooth extraction in which the blood clot fails to form; dry socket: An alveoalgia results in focal osteomyelitis and severe pain.
amnalgesia (s) (noun), amnalgesias (pl)
A technique by which all pain and memory of a potentially painful procedure are abolished: Amnalgesia involve the use of drugs, or, in a case of a minor procedure, hypnosis.
analgesia (s) (noun), analgesias (pl)
A state in which painful stimuli are so moderated that, though still perceived, they are no longer painful; and so there is no feeling of pain: Rosemarie was grateful for the medication which induced a state of analgesia because now she was not aware of any significant pain.
analgesic (s) (noun), analgesics (pl)
1. Compounds capable of relieving pain without the loss of consciousness or without producing anesthesia: Dr. Lawson, the dentist, injected Randal with a powerful analgesic so she could drill the decayed tooth without causing him any pain.
2. Those drugs that primarily relieve pain without blocking nerve-impulse conduction or markedly altering sensory functions: The new analgesic which Dr. Jones used was exceptional in terms of relieving or reducing Desiree's severe pain.
analgesic, analgetic (adjective); more analgesic, most analgesic; more analgetic, most analgetic
Regarding an agent that alleviates pain without causing loss of consciousness; antalgic: An analgesic medication is able to sooth or eliminate pain while a person is conscious.

An analgetic compound is capable of producing analgesia, i.e., one that relieves pain by altering perception of pain stimuli without producing anesthesia, or loss of consciousness.

You may take self-scoring quizzes over some of the words in this unit by going to Algesi Quiz to check your word knowledge of these words.