1. a gelatinous substance between the inner and outer cell layers of cnidarians and ctenophores
Usage: biology

Examples

• The jellyfish’s bell is composed largely of mesogloea.
• The mesogloea gives structural support to the cnidarian body.
• Scientists studied the composition of the mesogloea in various coral species.
• The transparent mesogloea allows light to pass through the jellyfish.
• Hydras have a thin layer of mesogloea between their cell layers.
• The mesogloea contains few cells and is mostly water and proteins.