Hypernatremia

Part of speech: noun

Pronunciation: /ˌhaɪ.pə.nəˈtɹiː.mi.ə/

Definitions

1. An abnormal increase in the concentration of sodium in the bloodstream can lead to severe dehydration risks and may result in neurological complications
2. This medical condition involves an excessive sodium level in the blood, commonly linked to dehydration and possible neurological disturbances
3. A medical state characterized by an unusually high sodium level in the bloodstream that can disrupt normal body functions

Etymology: "Hypernatremia" is a medical term built from familiar Greek pieces, and its structure is the story. The first part, "hyper-", comes from the Greek "huper," meaning "over" or "beyond," which English uses for anything above a normal level, as in hypertension or hyperactive. The middle part is "natr-," from "natron," a word for sodium carbonate, the mineral salt that ancient Egyptians used for drying and embalming. Chemists later applied "natr-" to sodium generally, which is why the element's chemical symbol is Na, from the Latin "natrium." The final part, "-emia," comes from the Greek "haima," meaning "blood." Medical writers attach it to the names of substances found in the bloodstream, so a condition with too much sugar is "hyperglycemia" and one with too much sodium is hypernatremia. Read in sequence, the parts say "excess sodium in the blood," which is exactly what the condition describes. Like many such terms, it was assembled deliberately from classical and scientific building blocks in the modern era rather than handed down from ancient physicians. Its meaning is therefore transparent to anyone who knows the parts.