Useful english dictionary. 2012.
thecial — the·cial … English syllables
thecium — thecial, adj. /thee shee euhm, see euhm/, n., pl. thecia / shee euh, see euh/. Mycol. hymenium. [1880 85; < NL < Gk thekíon, dim. of théke THECA; see IUM] * * * … Universalium
