Sea jelly is a term used to describe any species of jellyfish found in the ocean. The correct spelling of this term is /si ˈdʒɛli/, with the first syllable pronounced as "see" and the second syllable pronounced as "jelly". The IPA phonetic transcription for this word clearly shows that the first syllable starts with the letter S and the second syllable starts with the letter J followed by the sound /ɛli/. It is important to spell words correctly to avoid confusion and misunderstandings.
Sea jelly, also known as jellyfish, is a gelatinous and transparent invertebrate organism which belongs to the phylum Cnidaria. It typically dwells in marine environments, ranging from shallow coastal waters to the deep sea. The sea jelly is characterized by its umbrella-shaped body, commonly referred to as a bell, which is typically composed of a soft, transparent and jelly-like substance called mesoglea. The bell of a sea jelly is usually round or bell-shaped, with long, slender, and often tentacle-like appendages hanging down from its underside.
These tentacles are equipped with specialized cells called cnidocytes, which contain stinging structures known as nematocysts. Sea jellies employ these nematocysts to immobilize their prey, as they are predominantly carnivorous, feeding mainly on small fish, plankton, and other types of marine organisms. Sea jellies are known for their striking and vibrant colors, which can range from translucent to vivid hues of pink, blue, or purple, and are mainly due to the presence of pigments in their cells.
Despite their name, sea jellies are not actually fish and lack several vital fish characteristics such as a backbone or a brain. They are considered to be part of the gelatinous zooplankton, meaning that they lack any major means of self-propulsion and depend on ocean currents for their movement. Some sea jellies possess bioluminescent abilities, creating an ethereal glow that adds to their mesmerizing beauty. However, it is important to note that while sea jellies possess fascinating qualities and are often admired for their aesthetic appeal, certain species can also possess venomous tentacles, posing a threat to humans in some cases.
One of the jellylike animals of the genus medusa.
Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874.
The word "sea jelly" is a common term used to refer to jellyfish, a type of marine animal. The etymology of the word "jellyfish", which is sometimes used interchangeably with "sea jelly", can be traced back to the Old English word "gelyfan", meaning "to gel" or "to congeal". This refers to the gelatinous and opaque appearance of jellyfish. The term "jellyfish" itself came into use in the 18th century, as an adaptation of the earlier term "medusa" (referring to the mythological creature Medusa, whose hair was said to consist of vipers, resembling the tentacles of jellyfish).