1. 
   Heterosis
   Heterosis, or hybrid vigor, or outbreeding enhancement, is the improved or increased function of any biological quality in a hybrid offspring. The adjective derived from heterosis is heterotic. Heterosis is the occurrence of a superior offspring from mixing the genetic contributions of its parents....
   Found op http://en.wikipedia.org/wiki/Heterosis
   
   
2. 
   Heterosis
   Increased growth, vigour or yield frequently shown in the F1 generation of a cross. Hybrid vigour.
   Found op http://www.encyclo.co.uk/visitor-contributions.php
   
   
3. 
   heterosis
   Hybrid vigour, the superiority of a heterozygotic organism over the homozygote.
   Found op http://www.encyclo.co.uk/visitor-contributions.php
   
   
4. 
   Heterosis
   Het`e·ro'sis noun [ New Latin , from Greek ... alteration, from ... other, different.] (Rhet.) A figure of speech by which one form of a noun, verb, or pronoun, and the like, is used for another, as in the sentence: 'What is life to such as
   Found op http://www.encyclo.co.uk/webster/H/40
   
   
5. 
   heterosis
   <biology> The observation that in some circumstances, the heterozygotes in a population have higher fitness than the homozygotes, for example they grow better, are better able to survive, and/or are more fertile than the homozygotes. The effect of heterosis can also apply to hybrids (thus hybr...
   Found op http://www.mondofacto.com/facts/dictionary?heterosis
   
   
6. 
   heterosis
   (het″әr-o´sis) the existence, in the first generation hybrid, of greater vigor than is shown by either parent, as measured by growth, survival, or fertility; it is usually a reflection if increased heterozygosity. Called also hybrid vigor.
   Found op http://www.encyclo.co.uk/local/21001
   
   
7. 
   Heterosis
   • (n.) A figure of speech by which one form of a noun, verb, or pronoun, and the like, is used for another, as in the sentence: `What is life to such as me?`
   Found op http://thinkexist.com/dictionary/meaning/heterosis/
   
   
8. 
   heterosis
   the increase in such characteristics as size, growth rate, fertility, and yield of a hybrid organism over those of its parents. Plant and animal ... [5 related articles]
   Found op http://www.britannica.com/eb/a-z/h/45
   
   
9. 
   heterosis
   heterosis (het"urō'sis) : see hybrid.
   Found op http://www.infoplease.com/ce6/sci/A0914326.html
   
   
10. 
    heterosis
    Type: Term Pronunciation: het′ĕr-ō′sis Definitions: 1. The beneficial effect on the phenotype of crossing (hybridization) on growth, vigor, and physical or mental qualities in a strain of plants or in animal stock, as measured by the difference between the midparent mean phenot...
    Found op http://www.medilexicon.com/medicaldictionary.php?t=40827
    
    
11. 
    Heterosis
    a situation where crossing two inbred lines yields progeny that are more healthy/vigorous than their parents. (More commonly used in plant breeding.)
    Found op http://www.canine-genetics.com/glossary.htm
    
    
12. 
    Heterosis
    Designation for the particularly strong performance of hybrids (hybrids) in plant breeding and animal breeding. If the observed performance of the first filial generation (F 1 = direct descendant of the parental generation) is higher than the average power that capacity in the parental generation (p...
    Found op http://www.wein-plus.eu/en/Heterosis_3.0.14873.html
    
    

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