Definition of thermometer for Students. Word Root of thermometer. The Greek word metron, meaning âmeasure,â gives us the root metr. Words from the Greek metron have something to do with measuring. A thermometer is an instrument that measures temperature. A diameter is the measurement across the center of a circle.
What is Schistosomiasis? Schistosomiasis, also known as bilharziasis or snail fever, is a waterborne parasitic infection that damages internal organs. The most common symptoms are blood in urine and/or feces and an enlarged liver, diarrhea, abdominal pain, weakness, and anemia.
Schistosomiasis life cycle. 1  The schistosome eggs are excreted into the water system in the urine or faeces of an infected human. 2  The eggs hatch to release the free-swimming larval stage of the parasite, called miracidia, into the surrounding water. 3  The miracidia burrow into the tissue of a small, freshwater snail such as Biomphalaria.