TACET Ta"cet, v.impers. Etym: [L., it is silent, 3d pers.pr. of tacere to be silent.] (Mus.)
Defn: It is silent; — a direction for a vocal or instrumental part to be silent during a whole movement.
TACHE
Tache, n. Etym: [See Tack a kind of nail.]
Defn: Something used for taking hold or holding; a catch; a loop; a button. [Obs.] Ex. xxvi. 6.
TACHE
Tache, n. Etym: [F. tache spot. See Techy.]
Defn: A spot, stain, or blemish. [Obs.] Warner.
TACHHYDRITE
Tach*hy"drite, n. Etym: [Gr. (Min.)
Defn: A hydrous chloride of calcium and magnesium occurring in yellowish masses which rapidly deliquesce upon exposure. It is found in the salt mines at Stassfurt.
TACHINA
Tach"i*na, n.; pl. Tachinæ. Etym: [NL., fr. Gr. (Zoöl.)
Defn: Any one of numerous species of Diptera belonging to Tachina and allied genera. Their larvæ are external parasites of other insects.