semen

(biology) Any organism that subsists on liquids derived from other organisms.

(dated) Mouthwash.

(psychology) The capacity to think logically and solve problems in novel situations, independent of acquired knowledge.

A fluid that reduces friction within the pericardium by lubricating the epicardial surface, allowing the membranes to glide over each other with each heartbeat.

(physiology) A solution found in tissue spaces that inundates and moistens cells in multicellular animals.

(engineering) A volatile, flammable liquid which is used to aid the starting of internal combustion engines, especially during cold weather.

The fluid, most often water, used in hydraulic fracturing

A solution for removing stains from fabric.

(medicine) A solution of various chemicals used to preserve cadavers prior to burial or cremation. / (slang) A PCP solution used as a coating to enhance the high on a joint or cigarette.