rook 2 
(rk)
(rk)n. Abbr. R
A chess piece that may move in a straight line over any number of empty squares in a rank or file. Also called castle.
[Middle English rok, from Old French roc, from Arabic ruḫḫ, from Persian.]
- sensitive plant
- sensitivity
- sensitivity training
- sensitization
- sensitize
- sensitizer
- sensitometer
- sensitometric
- sensitometry
- sensor
- sensoria
- sensorial
- sensorially
- sensorimotor
- sensorineural
- sensorium
- sensory
- sensory deprivation
- sensory processing disorder
- sensual
- sensualism
- sensualist
- sensualistic
- sensuality
- sensualization