Passant. - Walking or looking straight forward (Heraldry).
Pateræ. - Plate-like ornaments.
Pediment. - The triangular or circular part over a window or door; the entablature, etc., of a building.
Pend. - A vaulted passage.
Pilasters. - Shallow column on a wall-face.
Piles. - A series of triangular wedge-shaped figures issuing from the top of the shield and pointing down-
wards (Heraldry).
Pinnings. - Small material used to fill up the interstices of masonry.
Piscina. - A basin with a drain discharging into the thickness of the wall, set in a niche or recess usually
south of the altar, where the chalice was rinsed and the priest washed his hands.
Pit. - A castle prison, usually in the form of a sunk chamber entered through a trap-door above.
Plinth. - (a) The lower member of the base of a column; (b) the projecting base of a wall.
Pommel. - The knob at the end of a sword-hilt.
Potence. - A ladder fixed so as to swing round the interior of a dovecot.
Processional door. - Door by which a monastic procession left the church at the east, and that by which
it re-entered at the west.
Putlog holes. - Openings left in a wall for the insertion of wooden beams.

Quadripartite vault. - A vault divided into four compartments by ribs or groins.
Quatrefoil. - See Foil.
Quillons. - The arms forming the cross-guard of a sword.
Quirk. - A sharp-edged channel as part of a moulding.
Quoins or Quoin Stones. - Dressed corner stones.

Race-band (or bond). - A vertical straight joint in courses of masonry.
Raggle. - A groove cut in masonry to receive the material forming a joint, especially on a wall to receive
the edge of a roof.
Rainure. - A narrow vertical opening to receive the cable and gaff of a drawbridge.
Rake. - The pitch or indication of a roof; the cornice of a triangular pediment.
Rampant. - Of ribs rising from springers not on the same level.
Re-entrant angle. - An angle pointing inwards.
Reredos. - A hanging, decorated wall, or screen of stone or wood at the back of an altar.
Rere-dorter. - The common latrine of a monastic house.
Respond. - Half-pillar or half-pier attached to a wall to support an arch.
Retable. - A frame enclosing painted or otherwise decorated panels at the back of an altar.
Retro-choir. - In a monastic church the enclosed space between the Pulpitum (q.v.) and the Rood-screen.
Returns. - Used in architecture when a wall moulding, etc., is continued at an angle, generally at a right
angle, to its previous direction.
Revestry. - Older form of 'vestry,' both for 'Revestiary,' the place where 'vestments' were kept.
Roll-and-hollow. - A roll-moulding combined with one or more concave mouldings.
Rood-screen. - The wooden or stone screen between nave and choir, on which was a "rood" or crucifix.
Roundel or Roundle. - A round disc of different metals and colours (Heraldry).
Rounds. - Turrets projecting from the angles of a parapet walk; used even of turrets square on plan. If
unroofed, called open rounds.
Rusticated. - Applied to ashlar masonry finished with sunk joints and rough surface.
Rybat. - Side-piece of dressed stone in windows, doors, etc.

Sacrament house. - A cupboard or aumbry used for the reservation of the Host.
Saliant. - In the attitude of leaping (Heraldry).
Saltire. - A St. Andrew's cross (Heraldry).
Sanctuary. - The division of a church in which the High Altar stood.
Scale-and-platt. - Of a stair having straight flights of steps with landings.
Scantlings. - Small beams.
Scarcement. - A narrow ledge formed when a wall is set back.
Scarp, Escarp, Escarpment. - The inner slope of the ditch of a fortified place; any steep slope.
Screens. - A partition either of timber or stone separating the hall from the service space, sometimes
applied to the space cut off; also the low dividing partitions in a church.

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