second heart sound
n.
The heart sound that signifies the beginning of diastole and is caused by closure of the semilunar valves.
QUIZZES
THIS PSAT VOCABULARY QUIZ IS PERFECT PRACTICE FOR THE REAL TEST
In our third teacher-created PSAT practice test there are new and unique vocabulary terms you may have never heard of! Can you guess what they mean?
Question 1 of 10
seclusion
Words nearby second heart sound
second-generation, second growth, second-guess, secondhand, secondhand smoke, second heart sound, second home, second-homer, second intention, Second International, second language
The American Heritage® Stedman's Medical Dictionary
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