Sometimes epiphora is not a result of excessive tear production but is a problem with tear drainage. Normally tears exit the eye through small holes called puncta, which leads to a duct called the nasolacrimal duct which empties out into the nose. This is why we have to blow our noses whenever we have a good cry.
Arithmetic (from the Greek á¼ÏÎ¹Î¸Î¼ÏÏ arithmos, number) is a branch of mathematics that consists of the study of numbers, especially the properties of the traditional operations between themâaddition, subtraction, multiplication and division.
noun. 1  Something having a position, quality, or condition midway between extremes; a medium. 2  Mathematics a. A number that typifies a set of numbers, such as a geometric mean or an arithmetic mean. 3  Logic The middle term in a syllogism. 4  means used with a sing. or pl.