1. A membrane enclosing and protecting the developing spores especially that covering the sori of a fern

Derived forms: indusia

See also: indusial

Type of: cover, covering, natural covering

Part of: sorus

Encyclopedia: Indusium

• absorbent
• absorbent cotton
• absorbent material
• absorber
• absorbing
• absorptance
• absorption
• absorption band
• absorption coefficient
• absorption factor
• absorption indicator
• absorption spectrum
• absorption unit
• absorptive
• absorptivity
• absquatulate
• abstain
• abstainer
• abstemious
• abstemiously
• abstemiousness
• abstention
• abstentious
• abstinence
• abstinent