Chambers 20th Century Dictionary(0.00 / 0 votes)Rate this definition: Engross. en-grÅsâ², v.t. to occupy wholly, monopolise: to absorb: to copy a writing in a large hand or in distinct characters: to write in legal form: to make gross.âns.
Pupillary distance (PD) is the measurement (in millimeters) of the distance between the pupils of your eyes. Pupillary distance is an important measurement used to determine the proper lens shape and alignment of your prescription correction to your line of vision.
Answers (5) 1  Your PD stands for Pupillary Distance, which is the distance between your pupils in millimeters, Your PD is very important for accurately fitting your lenses to achieve vision acuity. 2  That is Pupillary Distance. 3  People usually consider PD as Pupillary Distance which is the distance between your pupils in millimeters.