Look up cognate in Wiktionary, the free dictionary.

Cognate (from Latin cognatus "blood relation, having a common ancestor") may mean:

• two words with the same etymology, see cognate
  • false cognate
  • cognate object
• In a parliamentary sense, a cognate debate means that two or more bills can be debated together, if the House does not object to the matter. Bills are only debated cognately if they are closely related.
• In Mechanical Systems, the term "cognate" has been used to describe a linkage of different geometry, which generates the same coupler curve, see Cognate linkages.
• In molecular biology a ligand may have a cognate receptor. This is a receptor that specifically binds to that ligand.

[edit] See also

• Agnate
• Kinship terminology
• Ancestry
• Phylogeny

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