la·e·trile (lāĭ-trĭl′, -trəl)
A substance derived from amygdalin that has been promoted by some individuals as a treatment for cancer, although scientific studies have found no evidence of its effectiveness.
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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.