15-Letter Words Containing: _,I,O,S,S,T

• To synthesize carbohydrates from carbon dioxide and water using the energy of light by photosynthesis

• a psychologist trained in psychophysics

• the mental representation of sexual activities

• an underactive thyroid gland; a glandular disorder resulting from insufficient production of thyroid hormones

• providing a chart or outline of a system

• the act of reducing to a scheme or formula

• A form of psychology based on the direct experience of the self.

• a therapist who deals with mental and emotional disorders