The phrase "online instructors" refers to teachers or educators who teach and interact with students primarily through the internet or online platforms. Full definition
Students log on to a Web site to gain access to lessons, which consist mostly of text with some graphics, and they can call, e-mail or text online instructors for help. (nytimes.com)
Our goals as online instructors should be for one to occur at all times. (elearningindustry.com)
There should be sufficient Internet connectivity, equipment, and technical support to allow all of the students to complete assignments on time, communicate with online instructors, and work off - site. (sri.com)