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Related to puerilism: Tyronism
puerilism(pyo͝or′ə-lĭz′əm, pwĕr′ə-, pyo͞o′ər-ə-)
Childish behavior in an adult, especially as a symptom of mental illness.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.
puerilism(pū′ĕr-ĭl-ĭzm) [″ + Gr. -ismos, condition]
Childishness; second childhood.
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