THALASSOGRAPHY
Thal`as*sog"ra*phy, n. Etym: [Gr. -graphy.]
Defn: The study or science of the life of marine organisms. Agassiz.
THALER
Tha"ler, n. Etym: [G. See Dollar.]
Defn: A German silver coin worth about three shillings sterling, or about 73 cents.
THALIA Tha*li"a, n. Etym: [L., fr. Gr. (Class. Myth.) (a) That one of the nine Muses who presided over comedy. (b) One of the three Graces. (c) One of the Nereids.
THALIACEA
Tha`li*a"ce*a, n. pl. Etym: [NL. See Thalia.] (Zoöl.)
Defn: A division of Tunicata comprising the free-swimming species, such as Salpa and Doliolum.
THALIAN
Tha*li"an, a.
Defn: Of or pertaining to Thalia; hence, of or pertaining to comedy; comic.
THALLATE
Thal"late, n. (Chem.)