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cross·o·ver

(krôsō′vər, krŏs-)

1. A place at which or the means by which a crossing is made.

2. A short connecting track by which a train can be transferred from one line to another.

3. Genetics Crossing over.

4. A registered member of one political party who votes in the primary of the other party.

a. The adaptation of a musical style, as by blending elements of two or more styles or categories, to appeal to a wider audience.

b. One, such as a performer, song, or movie, that appeals to more than one segment of an audience or market.

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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