Open Dictionary
mouse here to listen, click to choose/add more
Location: USA
Source: Learn That Word
Profile URL:

Are you a native English speaker? How do you pronounce this word?

Thank you for contributing!
upload mp3 file or record now it's easy, promised!

{%type%} Definitions

WordNet 3.0Copyright Princeton University


Short "hint"

n. - Cluster of sporangia usually on underside of a fern frond; A spore-producing structure in certain lichens and fungi.

Usage examples (7)
  • Indusium minute, concealed beneath the sorus, divided into a few beaded hairs.
  • Indusium star-shaped, of a few irregular segments fixed beneath the sorus, often obscure.
  • Indusium hood-shaped, fixed centrally behind the sorus and arching over it, soon withering, often illusive.
  • Indusium cup-shaped, fixed beneath the sorus, supported by the tooth of a leaf; sporangia borne in an elevated, globular receptacle open at the top. for more
Tutoring comment

Tutoring comment not yet available...

add more
The Open Dictionary of English is a collaborative project, based on Open Source materials, LearnThat resources, and partner APIs.
We give special thanks to our LearnThat volunteers, as well as Princeton University and Wiktionary for their Open Source word data. We're also grateful for the support given by Google,,, and YouTube,,,,, as well as the generous Creative Commons community.