1. Colonial coelenterates having the polyp phase dominant
   - hydrozoan

Derived forms: hydroids

Type of: cnidarian, coelenterate

Part of: class Hydrozoa, Hydrozoa

Encyclopedia: Hydroid

• flat-growing
• flat-hat
• flat-leaf parsley
• flat-pack
• flat-topped
• flat-topped white aster
• flatbed
• flatbed lorry
• flatbed press
• flatbed truck
• flatboat
• flatbottom
• flatbottomed
• flatbread
• flatbrod
• flatcar
• flatfish
• flatfoot
• flathead
• flathead catfish
• flatiron
• flatlet
• flatly
• flatmate
• flatness