Sentence:  An engineer tends to describe <WSD>haptics</WSD> primarily in terms of forces, elongations, frequencies, mechanical tensions, and shear forces. This of course makes sense and is important for the technical design process. However haptics is more than that. <WSD>Haptic</WSD> perceptions range from minor interactions in everyday life, e.g., drinking from a glass or writing this text, to a means of social communication, e.g., shaking hands or giving someone a pat on the shoulder, and very personal and private interpersonal experiences. 
Meaning of the word marked with <WSD> tags:  Of or relating to the sense of touch; tactile.