a rigorously controlled test of a new drug or a new invasive medical device on human subjects; in the United States it is conducted under the direction of the FDA before being made available for general clinical use
Search the meaning/definition of over one hundred thousand
words!
Random Word
sweet_fern means
deciduous shrub of eastern North America with sweet scented fernlike leaves and tiny white flowers; mat-forming lithophytic or terrestrial fern with creepi... more