adj.1 of or relating to subjects or topics (thematic philately; the arrangement of the anthology is thematic).
2 Mus. of melodic subjects (thematic treatment).
3 Gram. a of or belonging to a theme (thematic vowel; thematic form). b (of a form of a verb) having a thematic vowel.
Phrases and idioms:
thematic catalogue Mus. a catalogue giving the opening themes of works as well as their names and other details.
Derivatives:
thematically adv.
Etymology: Gk thematikos (as THEME)