housemaid's knee

== English == === Etymology === So called because it used to be prevalent among housemaids, who spent time kneeling on floors to clean them. === Noun === housemaid's knee (countable and uncountable, plural housemaid's knees) (pathology) swelling of the bursa before the kneecap. Synonym: prepatellar bursitis ==== Translations ==== ==== Further reading ==== housemaid's knee on Wikipedia.Wikipedia