Fourth heart sound
fourth heart sound n.
The heart sound occurring in late diastole, corresponding with atrial contraction.
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- Fourth-international
noun 1. a loose federation of small groups of radical socialists formed in 1936 under the leadership of Leon Trotsky and hostile to the Soviet Union. Compare (def 6). noun 1. another name for Trotskyist International
- Fourthly
[fawrth-lee, fohrth-] /ˈfɔrθ li, ˈfoʊrθ-/ adverb 1. in the place; .
- Fourth normal form
database normalisation
- Fourth-of-july
noun 1. . noun 1. the Fourth of July, a holiday in the United States, traditionally celebrated with fireworks: the day of the adoption of the Declaration of Independence in 1776 Official name Independence Day The day on which the Declaration of Independence was adopted by the Continental Congress in 1776; Independence Day.
- Fourth-position
noun, Ballet. 1. a position in which the feet are at right angles to the direction of the body, the toes pointing out, with one foot forward and the other foot back. noun a position of the left hand (if right-handed) on the fingerboard of a stringed instrument nearer the bridge than third position Usage […]