- any covering membrane, as the amnion
- a case enclosing an insect larva or pupa
- a membranous outgrowth of the leaf epidermis in certain ferns, covering the sporangia
- the annulus of certain fungi
Origin of indusiumModern Latin from L, undergarment, tunic; associated, association with induere, to put on (see indue), but probably from Classical Greek endysis, dress, clothing from endyein, to go into, put on
An enclosing membrane, as that covering the sorus of a fern.
Origin of indusiumLatin tunic perhaps alteration of Greek endusis dress from enduein to sink into, put on en- in ; see en- 2. duein to sink