15-Letter Words Containing: O,R,T,O,U,R,S,_

• A protozoan, of the genus Cryptosporidium, that is an intestinal parasite of humans and other vertebrates; can cause diarrhea and other symptoms in cases of low immunity

• using the reflections of high-frequency sound waves to construct an image of a body organ (a sonogram); commonly used to observe fetal growth or study bodily organs

• someone who writes their own biography

• too much production or more than expected

• light microscope that uses scattered light to show particles too small to see with ordinary microscopes

• a radiogram produced by radiation emitted by the specimen being photographed

• A substance that has no resistance to conducting an electric current