/straynj"nis/ , n.
1. the quality or condition of being strange.
2. Physics. a quantum number assigned the value -1 for one kind of quark, +1 for its antiquark, and 0 for all other quarks; the strangeness of a hadron is the sum of the values for the strangeness of its constituent quarks and antiquarks. Symbol: S Cf. strange quark .
[ 1350-1400; ME; see STRANGE, -NESS ]