Beyond ordinary understanding

• Hidden from general view or use
• The next to highest level of official classification for documents
• Conducted with or marked by hidden aims or methods
• Designed to elude detection
• Not open or public
• Not expressed
• Not openly made known

WordNet Word definitions in WordNet
n. any of various organs that synthesize substances needed by the body and release it through ducts or directly into the bloodstream [syn: gland , secretory organ , secretor ]

Wiktionary Word definitions in Wiktionary
n. (alternative spelling of secretor English)