“Haptic” is based on the Greek “haptikos,” meaning “able to touch or grasp.” It’s a 19th-century word, but it’s become more relevant in the age of buzzing electronic devices. Haptic technology — also called kinesthetic communication, or 3D touch — gives users physical feedback when a task is accomplished. For example, a haptic buzz acknowledges when a touch-screen button is pressed. If the word “haptic” is new to you, the sensations almost certainly aren’t. In today’s world, people experience haptic notifications from their phones, watches, game controllers, smart home devices, and car safety features, such as lane-departure warnings.