| sphygmomanometer |
This is a devise used to measure blood pressure. By using a special cuff wrapped around your arm, the sounds of your blood rushing through your artery can be heard through a stethoscope. Two readings are given - (systolic) when your heart is contracting, and (diastolic) when it's at rest.
출처: www.wvqualitycoalition.org/Media/VI.htm
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| sphagnum moss |
A type of moss native to damp locations such as bogs and marshes. It is highly water absorbent and has various uses in plant cultivation, particularly in air layering, or as binding for large wounds to keep them moist.
출처: www.brusselsbonsai.com/Definitions.html
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| spherical aberration |
An optical aberration in which light from different parts of a mirror or lens is brought to different foci.
출처: www.astunit.com/tutorials/glossary.htm
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| spherical aberration |
occurs when a lens is ground perfectly spherical causing light rays to fall at different points on the macula where by a common focus can not be achieved.
출처: www.eyesinternational.com/eyecare/contacts_termino...
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| sphincterotomy |
a procedure to open the muscle sphincter - a ring of muscle around a natural opening that acts like a valve - wide enough so stones can pass into the intestine.
출처: content.jeffersonhospital.org/content.asp
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