(archaic, idiomatic) A standing pole and two wash-balls, historically used outside barber's shops.

(medicine) Any of a number of sorts of rashes or skin eruptions in the area of the mustache or beard, caused by fungal or staphylococcal infections or by irritation from shaving.

A paradox of self-reference, where, supposing that every man either shaves himself or is shaved by the barber, and the barber shaves all and only the men who do not shave themselves, then it is impossible to determine who shaves the barber.

plural of barber surgeon

plural of sleeping barber problem

(computing theory) A problem of interprocess communication and synchronization where one process responds to requests from multiple other threads and sleeps when not doing so. In some cases this may lead to an undesirable state where components are waiting for each other despite being ready.

Third-person singular simple present indicative form of keep it on the barber pole

present participle of keep it on the barber pole

simple past tense and past participle of keep it on the barber pole

An unlicensed performer of abortions; backstreet abortionist