at·ten·u·ate 
/əˈtɛnjəˌweɪt/ verb
at·ten·u·ates; at·ten·u·at·ed; at·ten·u·at·ing /əˈtɛnjəˌweɪt/ verb [+ obj] formal : to make (something) weaker or less in amount, effect, or force
▪ Earplugs will attenuate the loud sounds of the machinery. ▪ an attenuated virus
▪ Earplugs will attenuate the loud sounds of the machinery. ▪ an attenuated virus
— at·ten·u·a·tion /əˌtɛnjəˈweɪʃən/ noun [noncount]
/əˌtɛnjəˈweɪʃən/ noun [noncount]
