(medical genetics) A syndrome caused by the deletion of a small piece of chromosome 22 in humans, associated with various birth defects.

(lexicography, humorous) redundant acronym syndrome syndrome: a tautology in which one or more words that make up an acronym or initialism are used redundantly in conjunction with said abbreviation.

(pathology) A set of symptoms thought to involve hearing difficulties, facial pain, tinnitus, and dizziness, of unclear scientific validity.

(idiomatic, computing, technology) The condition of favoring entrenched and inferior technologies or practices over superior technologies or practices.

(medicine) The rare condition of having eaten large quantities of hair, which subsequently become lodged within a long portion of the intestine.

A genetic disorder that affects the first branchial (or pharyngeal) arch in a developing foetus, causing developmental problems.

(medicine) A neurogenetic disorder characterized by intellectual and developmental delay, sleep disturbance, seizures, jerky movements (especially hand-flapping), and frequent laughter or smiling.

Zellweger syndrome

A rare genetic disorder that affects the cerebellum.

A rare genetic disorder characterized by craniosynostosis.