1. The outer germ layer that develops into skin and nervous tissue
   - ectoderm, ectoblast

Derived forms: exoderms

Type of: germ layer

• hay bacillus
• hay bale
• hay conditioner
• hay fever
• hay-scented
• hay-scented fern
• Hayastan
• haycock
• Haydn
• Hayek
• Hayes
• hayfield
• hayfork
• haying
• haying time
• hayloft
• Haym Salomon
• haymaker
• haymaking
• haymow
• hayrack
• hayrick
• hayride
• hayrig
• Hays