Medical Definition of First heart sound

1. Occurs with ventricular systole and is mainly produced by closure of the atrioventricular valves. (05 Mar 2000)

Lexicographical Neighbors of First Heart Sound

first flight cover
first flight covers
first floor
first folio
first footing
first freedom fights
first fruits
first fundamental form
first gear
first gears
first grade
first grades
first half
first hand
first harmonic
first heart sound (current term)
first imperative
first imperatives
first in first out
first innings
first inversion
first inversions
first island chain
first lady
first language
first languages
first law of motion
first law of thermodynamics
first lieutenant
first light

Other Resources:

Search for First heart sound on Dictionary.com!Search for First heart sound on Thesaurus.com!Search for First heart sound on Google!Search for First heart sound on Wikipedia!

Search