O'mer (Heb. id. עֹמֶר, prop. a sheaf, as in Le 23:10, etc., from עָמִר, to bind or gather; Sept. γομόρ; Vulg. gonzer), a Hebrew dry measure (Ex 16:16,18,22,32-33), the tenth of an ephah (ver. 36); therefore about two quarts according to the rabbins, but three and a half quarts according to Josephus. SEE METROLOGY.