A slotted plate for carrying the gears of a lathe. / A Petri dish, divided into four, and containing agar and other materials, used in the identification of bacteria.

(physics) a sheet of birefringent material whose thickness is such that the light associated with the larger refractive index is retarded in phase by 90° with respect of that associated with the smaller refractive index; used to convert linearly polarized light into circularly polarized light

a hand plane designed for cutting rebates in wood

A slit or other opening in an item of clothing, to allow access to pockets or fastenings / (obsolete) A petticoat, especially an underpetticoat. / (obsolete, slang, by extension) A woman.

(poetic or archaic) A lament or woeful cry. / A complaint. / (archaic) A sad song. / (archaic or UK law) An accusation.

(idiomatic) Any strategy devised to reach a given objective.

(sequence, idiomatic) to begin with; earlier; firstly; originally; at the start, / (idiomatic) at all, even (typically in non-negated statements)

An electronic device for playing phonograph records.

(geometry) The set of all points in a planar coordinate system.

The act of placing or putting in place; the act of locating or positioning; the state of being placed. / A location or position. / The act of matching a person with a job