Reaktant
reactant
Reaktanz
reactance
Aktant
agent
complement
Reaktion
reaction
Reaktor
reactor
Realität
reality
reaktiv
reactive
Traktat
treatise
tract
treaty
Oktant
Octans
rektal
rectal
Rattan
rattan
Sextant
sextant
Radiant
radian
radiant
Rechtkant
cuboid
rasant
rapid
relevant
relevant
resonant
resonant
riskant
risky
vakant
vacant
Breakball
break point