Northeast Home Heating Oil Reserve (NEHHOR) inventories now classified as ultra-low sulfur distillate (15 parts per million) are not considered to be in the commercial sector and therefore are excluded from distillate fuel oil supply and disposition statistics in Energy Information Administration publications, such as the Weekly Petroleum Status ...
Nondisjunction is a term for a specific defect in the way the chromosomes of a cell separate. Nondisjunction can lead to genetic defects like Down's Syndrome.
http://www.ask.com/questions-about/what-causes-nondisjunction#anchq_3. Any chromosomal departure from normal (as in your question, the NON separating of paired chromosomnes) would cause either NON development or DISORTED development of the organ for which the chromosomne was destined.