An Etymological Dictionary of Astronomy and Astrophysics

Any of several techniques, such as → Doppler tomography, for constructing a spatial distribution of physical quantity given measurements that are essentially line-integrals (“projections”) through the distribution. Most famously, in medical tomography, the absorption of X-rays by a specimen is directly related to the line integral to make detailed images of a predetermined plane section of a solid object while blurring out the images of other planes.

Etymology (EN): From Gk. tomo- combining form of tomos “a cut, section, slice” tome “cutting” + → -graphy.

Etymology (PE): Borešnegâri, from boreš “section, slice, cutting,” from boridan “to cut”
(Mid.Pers. britan, brinitan “to cut off;” Av. brī- “to shave, shear,” brin-; cf. Skt. bhrī- “to hurt, injure,” bhrinanti “they hurt”) + -negâri, → -graphy.