The British spelling of arterialization; the process of making something arterial or converting venous blood to arterial blood.
From arterial + -isation (British -isation suffix), forming a noun for the action of becoming or making arterial. The suffix -isation comes from Latin -izare, borrowed from Greek -ízein.
British English preserves the -isation spelling while American English uses -ization—both refer to medical processes in the body, but the spelling difference reflects how English fractured geographically, with each region standardizing its own conventions.
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