indumentum /in-dū-menˈtəm/ (biology)

1. A total covering of hair, feathers, etc
2. The underside of rhododendron leaves

• spittlebug
• spittlebugs
• spittle-house
• spittle-houses
• spittle insect
• spittle insects
• spittles
• spittoon
• spittoons
• spit up
• spitz
• spitzes
• spiv
• spivs
• spivveries
• spivvery
• spivvier
• spivviest
• spivvy
• SPL
• splanchnic
• splanchnocele
• splanchnoceles
• splanchnologies
• splanchnology