indusium

noun in·du·si·um \in-ˈdü-zē-əm, -ˈdyü-, -zhē-\

plural -sia \-zē-ə, -zhē-\

Definition of INDUSIUM

: an investing outgrowth or membrane; especially : an outgrowth of a fern frond that covers the sori

New Latin, from Latin, tunic

First Known Use: 1807

Medical Dictionary

noun in·du·si·um \in-ˈd(y)ü-z(h)ē-əm\

plural -sia \-z(h)ē-ə\

: a membrane serving as a covering; especially : indusium griseum

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