1. (a.) Thin; watery; like serum; as the serous fluids.

2. (a.) of or pertaining to serum; as, the serous glands, membranes, layers. See Serum.

bloody chylifactive chylifactory chylific excretory humoral ichorous lachrymal lachrymose lacrimatory lactational lacteal lacteous phlegmy purulent pussy rheumy salivant salivary salivous sanious secretional secretive secretory seminal sialagogic spermatic suppurated suppurating suppurative tearlike watering watery