At-tĕn'ū-ant1, a.
a. [Fr. atténuant, Lat. attenuans, p. pr. of attenuare. See infra.] Making thin, as fluids; diluting; rendering less dense and viscid; as, an attenuant medicine.
2 entries under this word
Attenuant
At-tĕn'ū-ant2, n.
n. (Med.) A medicine that thins or dilutes the fluids; a diluent. Dunglison.