- 内 內 locativeinsideinside; within; inner; internal; specifically refers to the interior or domestic domain as opposed to the exterior or foreign domain; often used in spatial or temporal contexts
- esterA type of organic compound formed by the reaction of an alcohol and an acid with the loss of water. Low molecular weight esters are typically fragrant liquids used as solvents or flavorings, while high molecular weight esters are solids or thick liquids found in fats and oils.