[ih-luhs-tree-uh s] /ɪˈlʌs tri əs/
highly distinguished; renowned; famous:
an illustrious leader.
glorious, as deeds or works:
many illustrious achievements.
Obsolete. luminous; bright.
of great renown; famous and distinguished
glorious or great: illustrious deeds
1560s, from Latin illustris “lighted, bright, brilliant;” figuratively “distinguished, famous,” probably a back-formation from illustrare “embellish, distinguish, make famous” (see illustration). Sometimes also illustrous. Replaced illustre in same sense (mid-15c.), from Middle French illustre.
[ih-loo-vee-uh m] /ɪˈlu vi əm/ noun, plural illuviums, illuvia [ih-loo-vee-uh] /ɪˈlu vi ə/ (Show IPA) 1. the material accumulated through illuviation.
[ih-loo-vee-uh l, ih-loov-yuh l] /ɪˈlu vi əl, ɪˈluv yəl/ adjective 1. of or relating to or illuvium.
[ih-loo-vee-eyt] /ɪˈlu viˌeɪt/ verb (used without object), illuviated, illuviating. 1. to undergo illuviation. 2. to produce illuviation.
[ih-loo-vee-ey-shuh n] /ɪˌlu viˈeɪ ʃən/ noun 1. the accumulation in one layer of soil of materials that have been leached out of another layer. /ɪˌluːvɪˈeɪʃən/ noun 1. the process by which a material (illuvium), which includes colloids and mineral salts, is washed down from one layer of soil to a lower layer illuviation (ĭ-l’vē-ā’shən) The […]