ALL meanings of heterosis
het·er·o·sis
H h - noun heterosis the increase in growth, size, fecundity, function, yield, or other characters in hybrids over those of the parents. 1
- noun heterosis The tendency of a crossbred individual to show qualities superior to those of both parents. 1
- noun heterosis a phenomenon resulting from hybridization, in which offspring display greater vigor, size, resistance, etc. than the parents 0