1 Set of hunches. 2  If a theory is a set of hunches, it means we arenât yet sure we have the answer. 3  Theories always involve an element of speculation or conjecture. 4  A theory is not just one inspired thought or an isolated idea. 5  A theory offers some sort of explanation.  A theory offers some indication of scope.
uÂ·reÂ·dinÂ·iÂ·um. (yoÍorâ²Ä­-dÄ­nâ²Ä-Ém) also uÂ·reÂ·diÂ·um (yoÍo-rÄâ²dÄ-Ém) n. pl. uÂ·reÂ·dinÂ·iÂ·a (-dÄ­nâ²Ä-É) also uÂ·reÂ·diÂ·a (-dÄ-É) A reddish pustulelike structure that is formed in the tissue of a plant infected by a rust fungus and produces urediniospores.
Ureter(noun) the duct which conveys the urine from the kidney to the bladder or cloaca. Freebase(0.00 / 0 votes)Rate this definition: In human anatomy, the ureters are tubes made of smooth muscle fibers that propel urine from the kidneys to the urinary bladder.