ˈhōd.ə̇s- noun
Usage: usually capitalized H
Etymology: after R. P. Hotis died 1935 American agricultural marketing specialist
: a test for the presence of the common streptococcus of bovine mastitis in milk made by incubating a sample of milk with the aniline dye bromcresol purple, the appearance of yellow patches or coloration being indicative of the presence of the organism