Lewis & Short

pŏsĭtūra, ae, f. [pono].

  1. I. Lit., position, posture, situation (poet. and in post-class. prose): corporum, Lucr. 1, 685: ligni, Gell. 5, 3, 4: sideris, id. 2, 21.
    With a subject. gen.: dei, i. e. the formation of the world, Prop. 4 (5), 3, 36.
  2. II. Trop.
    1. A. Position, order, etc.: verborum, Gell. 1, 7, 19.
    2. B. In gram., pointing, interpunction, Don. p. 1742 P. al.