Anhidrosis

Part of speech: noun

Definitions

1. A medical condition that describes the failure to produce sweat, leading to insufficient thermoregulation and increased risk of heat stress
2. This disorder is marked by the absence of sweating, which disrupts the body's ability to cool itself and may cause overheating
3. A physiological condition characterized by a lack of sweat secretion, resulting in impaired temperature regulation and heightened susceptibility to heat-related illness

Etymology: Anhidrosis is a medical term built from Greek parts: the prefix "an-", meaning "without" or "not", attached to "hidrosis", a Greek-derived word for sweating (from "hidros", "sweat"). Together they name the condition of not sweating, a real and sometimes serious medical problem, not a poetic metaphor. The "an-" prefix comes down from a very old root meaning "not," which also gave English words such as "anarchy" and "anaerobic." The "hidr-" element is the more interesting link. "Hidrosis" is a technical coinage built from the Greek "hidrōs," meaning sweat, which is also the source of "hidrotic" and related medical terms. English scientists formed these words from classical roots when they needed precise vocabulary for the body, so the word is a modern scientific creation rather than something ancient Greeks used. Its structure follows the same pattern as other clinical words like "anosmia," meaning loss of smell.