nuclear outer membrane
http://purl.obolibrary.org/obo/GO_0005640
The outer, i.e. cytoplasm-facing, lipid bilayer of the nuclear envelope; continuous with the endoplasmic reticulum of the cell and sometimes studded with ribosomes. [ http://openisbn.com/search.php?q=0198547684&isbn=1/ ]
Synonyms: perinuclear membrane, nucleus outer envelope