(anatomy) Around the dura mater.

(thermodynamics) An ideal heat-engine cycle in which the working fluid goes through four successive operations: (1) isothermal expansion to a desired point; (2) adiabatic expansion to a desired poi...

present participle of hatchet

(transitive, slang) To take part in sexual acts with. / (transitive, slang) To arouse somebody sexually / (transitive, slang) To make more sexually attractive.