[bot-uh
m-uhp] 
| of, pertaining to, or originating with the common people, nonprofessionals, or the lower ranks of an organization: The five-day workweek was a bottom-up movement some business leaders and politicians finally supported. |
| bot·tom-up (bŏt'əm-ŭp') adj. Progressing from small or subordinate units to a larger or more important unit, as in an organization. |