(mathematics) An abstract construct in topology that associates data to the open sets of a topological space, together with well-defined restrictions from larger to smaller open sets, subject to the condition that compatible data on overlapping open sets corresponds, via the restrictions, to a unique datum on the union of the open sets.
“She stuck a sheaf of paper into her stapler and punched down much harder than was necessary.”
“Recall that in the first of Joseph's dreams he sees himself at harvest time as a sheaf of grain surrounded by other sheaves, all of which bow down to him.”
sheave
A wheel having a groove in the rim for a rope to work in, and set in a block, mast, or similar; the wheel of a pulley.