A body fluid found outside the cells and is the smallest component of the extracellular fluid.
Examples of this type of fluid are gastrointestinal fluid, [cerebrospinal] fluid, and ocular fluid, joint fluid, and bladder urine.
Word origin: L, comb. form of trāns (adv. and prep.) across, beyond, through + NL cellulāris, equiv. to cellul(a) live cell.
See also: extracellular fluid.