| Tetrahymena |
Tetrahymena are ciliate protozoa, common in aquatic habitats. They are pear-shaped and 30-100 μm in length, belonging among the hymenostomes and with cilia typical of that group. Tetrahymena thrive at temperatures of 18-22 degrees Celsius. Because of their short generation time and because they can be grown to high cell density in inexpensive media, they are common subjects of scientific study. The two most popular Tetrahymena species used in biomedical researches are T. ...
출처: en.wikipedia.org/wiki/Tetrahymena
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| tetralogy |
Four plays performed together in sequence. In ancient Greek theatre, this was the basic pattern for the tragic playwrights, who presented a trilogy of tragedies, followed by a satyr play.
출처: highered.mcgraw-hill.com/sites/0767430077/student_...
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| tetralogy of Fallot |
a genetic heart disease involving four structural defects in the heart, which result in insufficient levels of oxygen in the blood
출처: www.american-depot.com/services/resources_gl_t.asp
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| tetralogy of Fallot |
(a combination of defects that disrupt blood flow from the heart to the lungs)
출처: https://www.healthforums.com/library/1,1277,articl...
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| tetrad |
a group of four.
출처: www.anbg.gov.au/glossary/webpubl/fernglos.htm
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