cardiologist
Americannoun
Explanation
A cardiologist is a heart doctor. He or she is the one to visit if you feel a tightness in your chest and shortness of breath. We know that the suffix -ologist refers to someone who studies some area. To that, we add cardio-, which comes from the Greek kardia, meaning "heart," and we get "someone who studies the heart." The actual study of the heart is called cardiology, with cardiologist coming along a few years later. Besides treating the heart, a cardiologist is also concerned with the circulatory system, including arteries and veins.
Vocabulary lists containing cardiologist
Body Language: Cor, Cord, Cardio ("Heart")
Looking to grow your vocabulary? Check out this interactive, curated word list from our team of English language specialists at Vocabulary.com – one of over 17,000 lists we've built to help learners worldwide!
The Other Side
Interested in learning more words like this one? Our team at Vocabulary.com has got you covered! You can review flashcards, quiz yourself, practice spelling, and more – and it's all completely free to use!
UCPS 6th Grade Roots List #10
Want to remember this word for good? Start your learning journey today with our library of interactive, themed word lists built by the experts at Vocabulary.com – we'll help you make the most of your study time!
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.
In a statement the trust stressed the CRT devices were safe and that patients treated by cardiologist Dr Ernest Lau do not need to take any immediate action.
From BBC • May 15, 2026
Debbie Kwon, a cardiologist at the Cleveland Clinic, had to overcome bureaucrats and colleagues who sabotaged her attempts to recruit engineering talent and apply AI to MRI technology.
From The Wall Street Journal • May 8, 2026
"As an interventional cardiologist, who treats patients with coronary artery disease and congestive heart failure on a daily basis, I would love to have another therapy to improve patient outcomes and reduce debilitating symptoms."
From Science Daily • May 5, 2026
The remarks echoed others made during the pandemic, including by Eric Topol, who is executive vice president of Scripps Research in La Jolla, a professor of translational medicine and a cardiologist.
From Los Angeles Times • Apr. 27, 2026
Having ruled out a heart attack, the cardiologist, James Herrick, assigned the case rather casually to a medical resident named Ernest Irons.
From "The Gene" by Siddhartha Mukherjee
![]()
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.