Quick Answer. The most common causes of wavy lines in eyesight include ocular migraine and macular degeneration, according to Healthhype.com. Metamorphopsia is the medical term for this form of vision disturbance, which may be either transient or constant, depending on the cause of the disorder. Continue Reading.
Halons are low-toxicity, chemically stable compounds that have been used for fire and explosion protection from early in the last century. Halon has proven to be an extremely effective fire suppressant. Halon is clean (i.e., leaves no residue) and is remarkably safe for human exposure.
Halogen. The halogens or halogen elements are a group in the periodic table consisting of five chemically related elements, fluorine, chlorine, bromine, iodine, and astatine. The artificially created element 117 may also be a halogen.In the modern IUPAC nomenclature, this group is known as group 17.iktionary (0.00 / 0 votes) Rate this definition: halogen (Noun). Any element of group 7, i.e. fluorine, chlorine, bromine, iodine and astatine, which form a salt by direct union with a metal. Origin: From á¼Î»Ï + -gen, referring to elements which produce a salt in union with a metal.