(dated) The former name of the national language of the Philippines, now officially Filipino.

A structural support comprising a length of wood, steel, or other construction material. / The act of heaping up.

present participle of pile

plural of piling

(chemistry) Any of several substances that reduce the number of hairlike pili on the surface of bacteria and thus reduce its ability to adhere to human tissue.

plural of pilicide

A type of retaining wall used during construction by driving interlocking sheets of material into the ground. / The material used to assemble a sheet pile retaining wall.

Containing or producing hair.

Resembling hair

plural of pilidium