From lutecium + -ian. <span class="searchmatch">lutecian</span> (not comparable) (mineralogy) Containing lutetium....
See also: lutécium lutecium (uncountable) Obsolete form of lutetium. <span class="searchmatch">lutecian</span> Czech Wikipedia has an article on: lutecium Wikipedia cs IPA(key): [ˈlutɛːt͡sɪjum]...