monocyclic

"The prisoners were kept in a secure compound. "

"Gasoline is a hydrocarbon fuel used in many cars. "

"The development of this story has been slow."

"The scientist carefully examined the substance to determine its chemical composition. "

"The police identified the thief using security camera footage. "

"The birds had built an amazing structure out of sticks and various discarded items."

"This plant flowers in June."

"Because of its anesthetic properties, cyclopropane was once used in hospitals to help patients during surgery, but its flammability made it a risky choice. "

"People commonly eat breakfast before going to school. "

"Pit row was abuzz with activity."

"Grandma used a generous amount of aromatic in her famous spaghetti sauce. "

"Hydrogen chloride is a diatomic molecule, consisting of a hydrogen atom and a chlorine atom."