rubredoxin ru·bre·dox·in (rōō’brĭ-dok’sĭn) n. A protein that displays electron-carrier abilities and is associated with oxidation-reduction reactions in certain bacteria and cells.
rubriblast ru·bri·blast (rōō’brə-blāst’) n. See pronormoblast.
noun 1. a title, heading, direction, or the like, in a manuscript, book, statute, etc., written or printed in red or otherwise distinguished from the rest of the text. 2. a direction for the conduct of divine service or the administration of the sacraments, inserted in liturgical books. 3. any established mode of conduct or […]
adjective 1. reddish; marked with red. 2. of, pertaining to, contained in, or prescribed by rubrics, especially liturgical rubrics.