Ridge (biology) definition

(1) A beam laid along the edge where two sloping sides of a roof meet at the top; provides an attachment for the upper ends of rafters

(2) Any long raised border or margin of a bone or tooth or membrane

(3) A long narrow natural elevation or striation

(4) A long narrow range of hills

(5) A long narrow natural elevation on the floor of the ocean

(6) Any long raised strip

(7) Form into a ridge

(8) Spade into alternate ridges and troughs

"Ridge the soil"

(9) Throw soil toward (a crop row) from both sides

"He ridged his corn"

(10) Plough alternate strips by throwing the furrow onto an unploughed strip

(11) Extend in ridges

"The land ridges towards the South"