CALENDER, verb transitive To press between rollers, for the purpose of making smooth, glossy and wavy; as woolen and silk stuffs and linens. CALENDER, noun A machine or hot press, used in manufactories to press cloths, for the purpose of making them smooth, even and glossy, laying the nap, watering them and giving them a wavy appearance. It consists of two thick rollers or cylinders, placed between boards or planks, the lower one being fixed, the upper one movable, and loaded with a great weight.
Source: Webster's 1828 American Dictionary ↗ · public-domain · returned verbatim, no AI