(n.) A disposition to turn or incline towards the earth; the influence of gravity in determining the direction of growth of an organ.

C C-note G suit G-note M apogeotropism buck cartwheel cent century chiliad chiliagon chiliahedron chiliarch chiliarchia copper dime dollar dollar bill fifty cents fin fish five cents five hundred dollars five-dollar bill five-hundred-dollar bill five-spot fiver four bits frogskin geotropism grand gravitation graviton gravity half G half a C half dollar half grand hundred-dollar bill iron man kilo kilocycle kilogram kilohertz kiloliter kilometer lakh mass mill millennium millepede milligram milliliter myriad nickel one hundred thousand penny quarter red cent sawbuck silver dollar skin smacker specific gravity ten cents ten thousand ten-spot tenner thou thousand thousand dollars thousand-dollar bill twenty-dollar bill twenty-five cents two bits two-dollar bill two-spot yard