Which term refers to the outline or contour of the face when viewed from one side?

The term that refers to the outline or contour of the face when viewed from one side is profile. In the context of design principles and beauty, particularly in hairstyling and makeup artistry, understanding the profile is crucial as it helps professionals assess the facial structure and enhance or modify it through their work. The profile represents the side view of the face, showcasing its unique contours and features, which can significantly impact styling choices.

Recognizing the profile allows for tailored approaches in design elements like hairstyle, makeup application, and even the selection of accessories. Thus, a strong grasp of profile not only aids in achieving aesthetic balance but also enhances the overall appeal of a look.