S2

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S2

Symbol for second heart sound.

S2

Cardiology The 2nd heart sound, which corresponds to the closure of semilunar–pulmonary and aortic valves, which is a short, higher pitched “dubb”.

S2

Abbreviation for second heart sound.
References in periodicals archive ?
In spite of these challenges, intelligence personnel identified and acted upon opportunities to advise, particularly within the brigade S-2 and elements of the MI company supporting the mission command functions of the Task Force Southeast G-2 team.
X, Y and Z, and S-1 will liquidate and distribute all their N stock to S-2 (X, Y and Z's liquidations and S-1's liquidation).
While thorough coordination between internal components is critical in any S-2 section, it is especially important in a multifunctional engineer battalion.
2008 SURFLANT Petty Officer of the Year CS3 Gregory Ryan S-2 Division Records Keeper/Cook on Watch USS Mahan (DDG 72)
While the 3d Sustainment Brigade S-2 aggressively pursued direct support ISR coverage for its convoys and often received assets for its hotspots and operational moves, the brigade was not always the top priority for corps, division, or BCT collection assets.
S-2: "OK, the Faber football team gets really good.
We conducted a preliminary survey and chemical analysis of mosquito coils sold in Indonesia and California labeled to contain d-allethrin and S-2. Sales of unregistered mosquito coils containing S-2 are illegal in the United States.
1995-Nov 1997 High density(a) Density/ Prevalence/ Density/ Prevalence/ Web sites month(c) month(d) month(c) month(d) S-1 & S-2 26.1 20.2 43.6 18.4 (4-52) (0-43) (32-52) (10-22) S-1 9.7 28.5 15.2 26.4 (1-20) (0-75) (10-20) (15-38) S-2 16.4 14.2 28.4 14.3 (3-42) (0-33) (13-42) (6-19) Low density(b) Mean/ Prevalence/ Web sites month(c) month(d) S-1 & S-2 11.0 25.4 (4-22) (12-43) S-1 4.5 37.0 (1-9) (0-75) S-2 6.5 15.0 (3-13) (0-33)
JPS is also developing fabrics based on Owens-Corning's Hollex hollow S-2 glass.
1LTs and CPTs * Previous tactical intelligence experience required--OR former ride along participant * Serve as a certified JMRC Guest OCT * Must attend complete rotation OPFOR Assistant S-2 --2LTs and 1LTs * No tactical intelligence required * Serve as the 1st Battalion, 4th Infantry Regiment assistant S-2 for an exercise * Unique opportunity from red perspective * Can be tailored to fit officer availability The program offers three options: