A benign tumor composed of an abnormal mixture of normal tissue elements that develop and grow at the same rate as adjacent tissue, resulting from faulty development in an organ.
[German Hamartom, Greek hamartanein, to miss the mark, go wrong, German -om, -oma.]
ham′ar′toma·tous (-tŏmə-təs, -tōmə-təs) adj.
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Indo-European & Semitic Roots Appendices
Thousands of entries in the dictionary include etymologies that trace their origins back to reconstructed proto-languages. You can obtain more information about these forms in our online appendices:
The Indo-European appendix covers nearly half of the Indo-European roots that have left their mark on English words. A more complete treatment of Indo-European roots and the English words derived from them is available in our Dictionary of Indo-European Roots.