a·liz·a·rin (ə-lĭzər-ĭn) also a·liz·a·rine (-ĭn, -ə-rēn′)
An orange-red crystalline compound, C14H8O4, used as an acid-base indicator and in making dyes.
[French alizarine, from alizari, madder root, from Spanish, probably from Arabic al-'uṣāra, the juice : al-, the + 'uṣāra, juice (from 'aṣara, to squeeze; see ʿṣr in the Appendix of Semitic roots).]
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2020 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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.