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chem·is·try

(kĕmĭ-strē)

n. pl. chem·is·tries

1. The science of the composition, structure, properties, and reactions of matter, especially of atomic and molecular systems.

2. The composition, structure, properties, and reactions of a substance.

3. The elements of a complex entity and their dynamic interrelation: "Now that they had a leader, a restless chemistry possessed the group" (John Updike).

4. Mutual attraction or sympathy; rapport: The chemistry was good between the partners.

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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