Define the fourth heart sound. It is heard right before S1 late in diastole and sounds like ventricular filling. Sounds like da LUB-dub. It can be heard on the apex in the left lateral position. It is normal in people over the age of 40-50. Usually heard after exercise with no CV disease. Abnormal sounds like an atrial gallop.
Define subset. subset synonyms, subset pronunciation, subset translation, English dictionary definition of subset. n. A set contained within a set. n 1. maths a. a set the members of which are all members of some given class: A is a subset of B is usually written AâB b.... Subset - definition of subset by The Free Dictionary
Here are all the possible meanings and translations of the word convex set. Wiktionary(0.00 / 0 votes)Rate this definition: convex set(Noun) A set which contains any convex combination of any (finite) subset of its points. Freebase(0.00 / 0 votes)Rate this definition: In Euclidean space, an object is convex if for every pair of points within the object, every point on the straight line segment that joins them is also within the object.