A province of Afghanistan, named after the river running through it.

Any of various infectious diseases comprising and developing from infestation with any of various parasitic worms.

plural of crash helmet

A helmet worn by motorcyclists worn to protect the head in case of an accident.

plural of close helmet

Of or pertaining to Hermann Ludwig Ferdinand von Helmholtz (1821–1894), German physician and physicist who made significant contributions to modern science.

plural of helmette

Obsolete form of helmet.

guidance; direction

plural of helminthiasis