cross-section
n. १ काटछेद (पु.) २ Math. अवछेद (पु.) ३ Nucleonics (when extended to mean a measure of probability of a particular process. It is expressed in units of area) परिक्षेत्र (न.) (as in : nuclear reaction cross-section न्यूक्लीय अभिक्रिया परिछेत्र)