/hyooh"myeuh lon'/ or, often, /yooh"-/ , n.
a bitter constituent of hops, C 21 H 30 O 5 , having antibiotic properties.
Also, humulone /hyooh"myeuh lohn'/ or, often, /yooh"-/ .
[ 1915-20; Humul ( us ) genus name (special use of ML: hop plant humall, OE hymele ) + -on -ONE ]