Hu·la-Hoop 
(hlə-hp′)
(hlə-hp′) A trademark for a light plastic hoop that is whirled around the body for play or exercise by the movement of the hips.
- relatedness
- relater
- relation
- relational
- relational database
- relationally
- relationship
- relative
- relative biological effectiveness
- relative clause
- relative density
- relative frequency
- relative humidity
- relatively
- relative molecular mass
- relativeness
- relative permittivity
- relative pitch
- relative pronoun
- relative to
- relativism
- relativist
- relativistic
- relativistic mass
- relativity