Definition of subumbrella in English:

subumbrella

Line breaks: sub|umbrella
Pronunciation: /sʌbʌmˈbrɛlə
 
/

noun

Zoology
  • The concave inner surface of the umbrella of a jellyfish or other medusa.
    More example sentences
    • These rhopalial ganglia presumably sort this information and then distribute it to the appropriate effectors, the swim musculature, via the distributed nerve net of the subumbrella.
    • From the center of the subumbrella hangs the manubrium, which terminates with a mouth opening.
    • Hydromedusae swim by rhythmically contracting the circular swimming muscles located in the subumbrella.

Derivatives

subumbrellar

adjective
More example sentences
  • Yet another hypothesis for the origin of the mesoderm from the subumbrellar epithelium of a hydrozoan medusa buds has been recently advanced.
  • The nervous system can be divided into three functional parts: the sensory clubs or rhopalia, the conducting nerve ring, and the motor nerve net underlying the subumbrellar epithelium.
  • Ding further described Sanxiamedusa and Maopingimedusa from Doushantuo black shales at Miaohe and interpreted them as medusae based on claimed subumbrellar radial canals and tentacles.

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a small amount; a little