chelation
UK[kiːˈleɪʃən]US[kiːˈleɪʃən]
n
The process of forming a chelate, a chemical compound in which a central metal ion is bonded to a molecule at two or more points.
n
A medical treatment that involves using agents to remove heavy metals from the bloodstream.
Morpheme Breakdown
chel
ation
chel
claw
ation
action or process
Etymology
The word 'chelation' derives from the Greek word chēlē, meaning "claw." This vivid imagery was adopted into chemistry to describe the molecular action where a ligand molecule surrounds and binds a central metal ion at multiple points, much like a claw or pincer grasps an object. The Latin-derived suffix -ation was added to form a noun describing this specific chemical process. Over time, the concept extended from pure chemistry into medicine, where it refers to the therapeutic process of using chelating agents to bind and remove toxic metals from the body, retaining the core idea of a tight, multi-point grasp.
Analysis
Structure: chel (claw) + ation (action or process)
chel (from Greek chēlē, meaning "claw" or "pincer") + ation (from Latin -atio, a suffix forming nouns indicating an action or process)
Examples
The chelation of iron by EDTA is a standard procedure in laboratory chemistry.
The doctor recommended chelation therapy to treat the patient's lead poisoning.
The stability of the complex depends on the efficiency of the chelation process.