Nodal - AbsoluteAstronomy.com

Nodal can refer to

Nodal, a protein encoded by the gene NODAL
NODAL
Nodal is a protein that in humans is encoded by the NODAL gene. It is a member of the TGF beta superfamily. Like many other members of this superfamily, it is involved in cell differentiation...

and responsible for left-right asymmetry
Nodal (software), a novel music composition program

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