• (a.) Making thin, as fluids; diluting; rendering less dense and viscid; diluent. • (n.) A medicine that thins or dilutes the fluids; a diluent. Found on http://thinkexist.com/dictionary/meaning/attenuant/
At·ten'u·ant adjective [ Latin attenuans , present participle of attenuare : confer French atténuant . See Attenuate .] Making thin, as fluids; diluting; rendering less dense and viscid; diluent. -- noun (Medicine) A medicine that thins or ... Found on http://www.encyclo.co.uk/webster/A/142