leukocytosis
UK[ˌluː.kəʊ.saɪˈtəʊ.sɪs]US[ˌluː.koʊ.saɪˈtoʊ.sɪs]
n
A temporary increase in the number of white blood cells circulating in the blood, typically due to infection, inflammation, or other physiological stress.
Morpheme Breakdown
leuko
cyt
osis
leuko
white
cyt
cell
osis
condition
Etymology
The term 'leukocytosis' is a modern medical coinage constructed entirely from Greek roots to describe a specific physiological condition with clinical precision. It literally translates to "a condition of white cells," directly mapping its components to the biological reality it names. The first element, leukos (white), refers to the color of the cells in question, a characteristic noted since ancient times. The second, kytos (cell), reflects the modern biological understanding of cellular structures. Finally, the suffix -osis pathologizes the term, indicating it is an abnormal state or increase. Thus, the word's logic is transparent: it is a descriptive, compound term built from classical elements to serve the exacting needs of scientific nomenclature.
Analysis
Structure: leuko (white) + cyt (cell) + osis (condition)
- leuko: From Greek leukos, meaning "white, bright, clear." In this word, it functions as a combining form denoting whiteness.
- cyt: From Greek kytos, meaning "a hollow, a vessel, a cell." In this word, it functions as a combining form meaning "cell."
- osis: From Greek -ōsis, a suffix forming nouns that denote a process, condition, or state, often an abnormal or diseased one.
Examples
The patient's high fever and leukocytosis suggested a bacterial infection.
Leukocytosis is a common laboratory finding following major surgery.
While often a response to infection, leukocytosis can also be caused by certain medications.