Fecal occult blood test
Fecal occult blood test: A test to check for hidden blood in the stool.
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- Fecal incontinence  Inability to hold feces in the rectum. This is due to failure of voluntary control over the anal sphincters permitting untimely passage of feces and gas. Also called rectal incontinence. 
- Fecalith  Fecalith: A hard stony mass of feces in the intestinal tract. A fecalith can obstruct the appendix, leading to appendicitis. Fecaliths can also obstruct diverticuli. Also known as coprolith and stercolith. 
- Fecund  Fecund: Fruitful, abundantly fertile. Just as a writer is prolific, a woman may be fecund, able to reproduce plentifully. Etymology:”Fecund” comes (minus the final “us”) from the Latin “fecundus” meaning fruitful. “Fecund” emphasizes abundance or rapidity in bearing offspring (or fruit). 
- Fecundity  Fecundity: The ability to have children, usually lots of them with ease. Etymology:”Fecundity” comes from the Latin “fecundus” meaning fruitful. “Fecundity” emphasizes abundance or rapidity in bearing offspring (or fruit). 
- Federal Emergency Management Agency  Federal Emergency Management Agency: Better known as FEMA, an agency of the US government dedicated to rapid response to disasters, both man-made and natural ones (such as floods, hurricanes, and earthquakes). FEMA provides financial assistance to individuals and governments to rebuild homes, businesses, and public facilities; trains firefighters and emergency medical professionals; and funds emergency […] 
