Acidosis

Part of speech: noun

Pronunciation: /ˌæs.ɪˈdəʊ.sɪs/

Definitions

1. A pathological state marked by an increased acidity in bodily fluids due to an overproduction of hydrogen ions, which can affect metabolic processes
2. A condition resulting from a greater concentration of acid-containing compounds in the bloodstream, disrupting normal pH levels and homeostasis
3. A medical condition characterized by an excessive accumulation of acids in the body fluids leading to metabolic imbalance and affecting physiological functions

Etymology: Acidosis is a modern medical coinage built from parts that are far older than the word itself. Its first half, "acid," comes from Latin "acidus," meaning sour, and passed into English through French "acide." The second half, "-osis," is the Greek suffix "-ōsis," used to name a condition or abnormal state, and it was carried into scientific Latin as "-ōsis" before English borrowed it. Put together, the word literally names a state of being too acidic. The sense of the word belongs to modern physiology. Ancient Greeks and Romans had no notion of excess acid in the blood, so the combination was assembled from classical building blocks to describe a condition that only became meaningful once chemistry and medicine could measure the body's acid-base balance. "Acidosis" thus shows a common pattern in medical English: an old suffix attached to a root that was itself borrowed, producing a label that sounds ancient but was devised for a new discovery.