Glea·son grade
| \ ˈglē-sᵊn-
\
\
Medical Definition of Gleason grade
1
: a grade given to each of the two most prevalent patterns of cancer cells in tissue obtained from biopsy of a prostate tumor that is based on a scale of 1 to 5 with 1 to 3 corresponding to well-differentiated cancer cells similar in appearance to normal cells in surrounding tissue and 4 to 5 corresponding to poorly differentiated cancer cells that look abnormal
2
: gleason score
Learn More About Gleason grade
Cite this Entry
“Gleason grade.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/Gleason%20grade. Accessed 11 Aug. 2022.
Style: MLA
MLA
Chicago
APA
Merriam-Webster
Chicago
APA
Merriam-Webster
Test Your Vocabulary
Challenging Words You Should Know
-
- Often used to describe “the march of time,” what does inexorable mean?
Can you spell these 10 commonly misspelled words?
TAKE THE QUIZ
A daily challenge for crossword fanatics.
TAKE THE QUIZLove words? Need even more definitions?
Merriam-Webster unabridged
Words at Play
Ask the Editors
Word Games
Share Gleason grade