Defn: Black tea, of higher grade (finer leaf and less dusty) than the present bohea. See Tea. Of black teas, the great mass is called Congou, or the "well worked", a name which took the place of the Bohea of 150 years ago, and is now itself giving way to the term "English breakfast tea." S. W. Williams.
CONGO GROUP
Con"go group. [From Congo red.]
Defn: A group of artificial dyes with an affinity for vegetable fibers, so that no mordant is required. Most of them are azo compounds derived from benzidine or tolidine. Called also benzidine dyes.
CONGO RED
Congo red. (Chem.)
Defn: An artificial red dye from which the Congo group received its name. It is also widely used either in aqueous solution or as test paper (Congo paper) for the detection of free acid, which turns it blue.
CONGO SNAKE
Con"go snake". (Zoöl.)
Defn: An amphibian (Amphiuma means) of the order Urodela, found in the southern United States. See Amphiuma.
CONGRATULANT
Con*grat"u*lant, a. Etym: [L. congratulans, p. pr.]
Defn: Rejoicing together; congratulatory.
With like joy Congratulant approached him. Milton.
CONGRATULATE Con*grat"u*late, v. t. [imp. & p.p. Congratulated; p.pr. & vb.n. Congratulating.] Etym: [L. congratulatus, p.p. of congratulari to wish joy abundantly; con- + gratulari to wish joy, from gratus pleasing. See Grateful.]