lecturer on demand; guest speaker on demand
Refers to a lecturer or speaker who is dispatched to a requested location, similar to a delivery service for lectures. Often used in educational or corporate contexts.
We invited a guest lecturer on demand for the company training.
We used a lecturer-on-demand service and had an expert give a talk.
出前 means 'delivery' (especially of food), while 出前講師 specifically refers to a lecturer who is delivered to a location.
講師 is a general term for 'lecturer' or 'instructor', whereas 出前講師 emphasizes the on-demand, dispatched nature.
Compound of 出前 (delivery) and 講師 (lecturer). The term likely originated from the concept of delivering a lecturer to a requested place, analogous to food delivery.