puer·il·ism 
(pyrə-lĭz′əm, pwĕrə-, pyər-ə-)
(pyrə-lĭz′əm, pwĕrə-, pyər-ə-)n.
Childish behavior in an adult, especially as a symptom of mental illness.
- scientific name
- scientific notation
- scientism
- scientist
- scientistic
- Scientology
- sci-fi
- scilicet
- scilla
- Scilly Islands
- scimitar
- scintigram
- scintigraph
- scintigraphic
- scintigraphically
- scintigraphy
- scintilla
- scintillant
- scintillant
- scintillate
- scintillating
- scintillatingly
- scintillation
- scintillation counter
- scintillator