[flag.el.late] vt -lat.ed ; -lat.ing [L flagellatus, pp. of flagellare, fr. flagellum, dim. of flagrum whip; perh. akin to ON blaka to wave] (ca. 1623) 1: whip, scourge
2: to drive or punish as if by whipping
[2]fla.gel.late adj [NL flagellatus, fr. flagellum] (ca. 1859) 1 a or flag.el.lat.ed : having flagella b: shaped like a flagellum
2. [[3]flagellate]: of, relating to, or caused by flagellates "~ diarrhea" [3]flagellate n [NL Flagellata, class of unicellular organisms, fr. neut. pl. of flagellatus] (1879): a flagellate protozoan or alga