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ag·glu·ti·na·tion

(ə-glt′n-āshən)

1. The act or process of agglutinating; adhesion of distinct parts.

2. A clumped mass of material formed by agglutination. Also called agglutinate.

3. Biology The clumping together of cells or particles, especially bacteria or red blood cells, usually in the presence of a specific antibody or other substance.

4. Linguistics The formation of words from morphemes that retain their original forms and meanings with little change during the combination process.

ag·gluti·na′tive (-n-ā′tĭv, -ə-tĭv) adj.

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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