2. (noun)superoxide dismutase, SOD an enzyme that catalyzes the conversion of superoxide into hydrogenperoxide and oxygen "oxygen free radicals are normally removed in our bodies by the superoxide dismutase enzymes"
3. (noun)sodomite, sodomist, sod, bugger someone who engages in anal copulation (especially a male who engages in anal copulation with another male)
4. (verb)sod an informal Britishterm for a youth or man "the poor sod couldn't even buy a drink"