hematology
Americannoun
Other Word Forms
Etymology
Origin of hematology
Explanation
Hematology is the branch of medicine that studies blood and diseases of the blood. It’s a word you’d hear at the hospital or doctor’s office, or if you’re having blood work done. Add an -ology to the end of a word and it means “the study of.” Medical fields such as neurology and cardiology relate to the brain and the heart, respectively. Then there’s hematology, which involves something that goes to the heart, brain, and everywhere else in the body: blood. Hematology involves diseases of the blood such as leukemia. The Greek root for blood (haima) also appears in blood-related words such as hemorrhage and hematoma.
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Kostas Biliouris, an analyst at Oppenheimer, says investors widely expect results to be published next Tuesday ahead of a major hematology conference.
From The Wall Street Journal ● May 28, 2026
Another highlight of the hematology meeting was Saturday’s report of the pivotal Phase 3 trial of anito-cel, the Arcellx treatment for multiple-myeloma.
From Barron's ● Dec. 9, 2025
Ph.D., professor of hematology and oncology, J. Chad Brenner, Ph.D., associate professor of otolaryngology-head and neck surgery, and Paul L. Swiecicki, M.D., associate medical director for the Oncology Clinical Trials Support Unit at Rogel.
From Science Daily ● Apr. 16, 2024
Floy Agnes Lee: I had to learn how to take blood, how to read the blood cells, what type of blood cell, and all that's connected with the hematology.
From Scientific American ● Jul. 27, 2023
“You are a specialist in hematology employed by the Anacortes General Hospital— is that correct? Do I have that right?”
From "Snow Falling on Cedars: A Novel" by David Guterson
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
