A thread pointed with a bristle and covered with shoemaker's wax, used in sewing leather, as for boots, shoes, etc.

present participle of sagger

A window sash that is hinged on the side. / A window having such sashes; a casement window.ᵂᵖ / (military) Occasionally seen as a usage error due to the similarity of the words: A casemate.

(mathematics) Of or pertaining to Heinrich Hertz and his work.