The quality or condition of being strange.
Physics A quantum number equal to hypercharge minus baryon number, indicating the possible transformations of an elementary particle upon strong interaction with another elementary particle.
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.