Aboral surface

Acontia

Anthozoa

Biradial symmetry

Blastula

Budding

Cnidaria

Cnidocil

Cnidocytes

Cnidoglandular lobe

Complete septa

Connexon

Cubozoa

Digestive epithelium

Dimorphic life cycle

Diploblastic

Ectoderm

Endoderm

Ephyra

Epithelomuscular cells

Extracellular digestion

Gap junctions

Gastric filaments

Gastrodermis

Gastrovascular cavity

Gastrozooid

Gastrulation

Gonozooid

Hydranth

Hydrostatic skeleton

Hydrozoa

Incomplete digestive system

Incomplete septa

Medusa

Mesoglea

Myoneme

Nematocyst

Nerve net

Nutritive muscular cells

Oral surface

Oral-aboral axis

Pedalia

Pigment cup

Planula larva

Polyp

Rhopalium

Schyphozoa

Scyphistoma

Septa

Siphonoglyphs

Spermaries

Statocyst

Strobila

Strobilization

Tissue-grade

Triploblastic

Velum