from the GNU version of the Collaborative International Dictionary of English
- n. A thin gelatinous tissue separating the ectoderm and endoderm in certain cœlenterates.
from The Century Dictionary and Cyclopedia
- n. The mesodermal intercellular substance, or ground-substance, of some animals, as sponges and other cœlenterates.
- n. [capitalized] A genus of gelatinous seaweeds, typical of the Mesoglæaceæ, with olive-brown branching filiform fronds.
Sorry, no etymologies found.