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rubber tree

1. A tropical South American tree (Hevea brasiliensis) widely cultivated especially in Asia for its latex, which is collected from slashes made in the bark and used to make commercial rubber.

2. Any of several other trees having similar latex or sap.

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:

Indo-European Roots

Semitic Roots

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.

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