alizarin

[ uh-liz-er-in ]
/ əˈlɪz ər ɪn /

noun Chemistry.

a solid appearing reddish-orange as crystals and brownish-yellow as powder, C14H8O4, one of the earliest known dyes, formerly obtained in its natural state from madder and now derived from anthraquinone: used chiefly in the synthesis of other dyes.
Also a·liz·a·rine [uh-liz-er-in, -uh-reen] /əˈlɪz ər ɪn, -əˌrin/.

Origin of alizarin

1825–35; < French alizarine, equivalent to alizar(i) (< Spanish < Arabic al the + ʿaṣārah juice) + -ine -ine1

Example sentences from the Web for alizarin

British Dictionary definitions for alizarin

alizarin
/ (əˈlɪzərɪn) /

noun

a brownish-yellow powder or orange-red crystalline solid used as a dye and in the manufacture of other dyes. Formula: C 6 H 4 (CO) 2 C 6 H 2 (OH) 2

Word Origin for alizarin

C19: probably from French alizarine, probably from Arabic al-’asārah the juice, from ’asara to squeeze

Medical definitions for alizarin

alizarin
[ ə-lĭzər-ĭn ]

n.

An orange-red crystalline compound used in making dyes and as an indicator.