1 doctor agreed: Can be a problem: The pr interval refers to a measurement in an ekg of how long it takes the pacemaker in the top part of the heart (the atria) to reach the bottom parts (the ventricles). The normal pacemaker is the sinus node, and it should take a certain amount of time to travel from point a to b.
Define pariah dog: a feral or stray dog that typically lives near human settlements; especially : a usually medium-sized, primitive dog (as ofâ¦ a feral or stray dog that typically lives near human settlements; especially : a usually medium-sized, primitive dog (as of Africa, India, orâ¦ See the full definition since 1828
However, sun dogs represent just one of many different types of halos. Moreover, the term sun dog (singular) specifically refers to either of the two bright spots to the left and right of the Sun: each of them is a separate sun dog.Since they typically appear in pairs, it would be more accurate, therefore, to use the plural sun dogs.owever, sun dogs represent just one of many different types of halos. Moreover, the term sun dog (singular) specifically refers to either of the two bright spots to the left and right of the Sun: each of them is a separate sun dog.