A variant or alternate plural form of diverticulum, though non-standard and rarely used in modern medical English.
From Latin 'diverticulum' with an alternate plural formation. This form appears in some older medical texts but has been largely superseded by the standard Latin plural 'diverticula'.
This word is a linguistic fossil—it shows how scientists sometimes tried different plural forms before settling on standard Latin plurals; you'll almost never see it used today in medical practice.
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