Webster's English Dictionary

Enter the word to look up:

tuberculosis

tu.ber.cu.lo.sis \t(y)u.-.b*r-ky*-'lo--s*s\ n [NL] : a highly variable 
   communicable disease of man and some other vertebrates  caused by the 
   tubercle bacillus and characterized by toxic symptoms or allergic 
   manifestations which in man primarily affect the lungs