definition of
engrossment

[1] #1 engrossment n. [concentration, absorption, immersion] complete attention; intense mental effort. wn

[2] #2 engrossment n. [preoccupation, preoccupancy, absorption] the mental state of being preoccupied by something. wn

[3] #3 engrossment n. [intentness] the quality of being intent and concentrated; "the intentness of his gaze". wn