expressivity
- noun
- /ɪkˌsprɛsɪˈvɪti/
- Specialized
- The expressivity of certain genes can lead to significant differences in physical traits among family members.
Examples
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The pictorial overlay used on the CRDI dial contained the word 'Expressivity' across the bottom of the overlay, with the words 'less' and 'more' serving as anchors at the extreme left and right (respectively) extents of the dial.
Academic text (2013) -
It has autosomal-dominant inheritance with complete penetrance and variable expressivity.
Academic text (2004) -
We found no empirical research that directly addressed the effect of accompaniment expressivity on perceptions of performances in any setting.
Academic text (2013) -
The dial contained a 255-degree arc; the starting position for the dial pointer for each selection was at the extreme left, which corresponded to an expressivity rating of zero.
Academic text (2013) -
Because only the pianist varied in expressivity, present results provide evidence that the expressivity of the pianist apparently impacted listeners' perceptions of the overall expressivity of the performance.
Academic text (2013) -
In genetics, expressivity describes how different individuals with the same genotype may show varying symptoms of a disease.
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Her research focused on the expressivity of genetic traits, highlighting how some characteristics are more pronounced than others.
Surface Forms
Morphology
expressivity = expressive (semi-transparent) = express + ive + ity
Formed by adding '-ity' to the adjective 'expressive'; formation is regular but the genetics sense is specialized and may not be obvious to general learners.
Etymology
Expressivity comes from the parts ex- 'out' and press 'to press', the same root as the common word express. In genetics it means how much a gene's effect is 'pressed out' and actually shows in a person's traits. So the origin helps you remember that expressivity is about how strongly a gene's effect appears.