from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. a gain of function mutation that causes novel gene function.
from the GNU version of the Collaborative International Dictionary of English
- n. A structure, part, or organ developed independently, that is, not derived from a similar structure, part, or organ, in a preexisting form.
from The Century Dictionary and Cyclopedia
- n. In biology, a part or organ, or a modification of a part or organ, which has recently been generated or acquired.
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