castellation
Battlements atop walls
Castellation refers to the battlements or notched parapets atop castle walls, featuring alternating raised sections and gaps that allowed defenders to shoot while remaining protected.
The term extends to any similar notched or indented pattern, whether decorative or functional.
In electronics, castellation describes the half-moon shaped metal contacts along the edges of circuit boards that enable soldering to other boards.
The building's castellation gave it a medieval appearance.
Notched fortress parapet
- parapetLow wall at edge
- embrasureFortified wall opening
- crenelBattlement's open space
- battlementToothed fortress wall crown
turret · curtain wall · arrow slit · loophole · watchtower · rampart · corbel · finial
Retain or fortified tower
- moatDefensive water ditch
- drawbridgeHinged castle entrance span
- portcullisVertical sliding castle gate
- barbicanOuter defensive tower
bailey · gatehouse · dungeon · bastion · palisade · stronghold · citadel · garrison
Titled warriors on horseback
- lordsMen of high rank
- vassalsFeudal subordinates owing service
- serfsFeudal bound laborers
- fiefdomFeudal territory under lord
manor · chivalry · heraldry · jousting · great hall · banquet · courtyard · nobility
Narrow carved channels
- notchesV-shaped incisions
- slotsNarrow elongated openings
- threadingPassing strand through opening
- gearsToothed rotating machine parts
watchmaking · precision · milling · machining · interlocking · alignment · adjustment · horology
crenellations
Notched fortress parapet
battlement · turret · curtain wall · arrow slit · loophole · watchtower · rampart · corbel · finial · roofline
keep
Retain or fortified tower
- moatDefensive water ditch
- drawbridgeHinged castle entrance span
- portcullisVertical sliding castle gate
barbican · bailey · gatehouse · dungeon · bastion · palisade · stronghold · citadel · garrison · siege
knights
Titled warriors on horseback
fiefdom · manor · chivalry · heraldry · jousting · great hall · banquet · courtyard · nobility · monarchy
grooves
Narrow carved channels
gears · watchmaking · precision · milling · machining · interlocking · alignment · adjustment · horology · escapement
castellationsmoothness
Freedom from irregularity
flatness · uniformity · plainness · evenness · continuity