block·age 
/ˈblɑ:kɪʤ/ noun
plural block·ag·es /ˈblɑ:kɪʤ/ noun 1 [count] : something that stops something (such as blood) from moving through something (such as a blood vessel)
▪ He had surgery to open up blockages in his arteries. 2 [noncount] : the state of being blocked
▪ trying to prevent blockage of the artery
▪ He had surgery to open up blockages in his arteries.
▪ trying to prevent blockage of the artery
