his·to·pa·thol·o·gy 
(hĭs′tō-pə-thŏlə-jē, -pă-)
(hĭs′tō-pə-thŏlə-jē, -pă-)n.
The study of the microscopic anatomical changes in diseased tissue.
his′to·path′o·logic (-păth′ə-lŏjĭk), his′to·path′o·logi·cal adj.
his′to·path′o·logi·cal·ly adv.
his′to·pa·tholo·gist n.
- running noose
- running start
- running stitch
- runny
- Runnymede
- run off
- runoff
- run off at the mouth
- run off with
- run-of-the-mill
- run on
- run-on
- run (one's) eyes over
- run one's eyes over
- run-on sentence
- run out
- runout
- run out of
- run out of gas
- run out of gas/steam
- run out of steam
- run out on
- run over
- run rings around
- run run out the clock