Your browser does not seem to support JavaScript. As a result, your viewing experience will be diminished, and you have been placed in read-only mode.
Please download a browser that supports JavaScript, or enable it if it's disabled (i.e. NoScript).
The attribution of sole or excessive importance to biological factors in the determination of intelligence, behaviour, development, etc.
Share your knowledge with the community
Browse our collection of 300,000+ community-written definitions
