Echinoidea: meaning, definitions and examples
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echinoidea
[ ˌɛkɪˈnɔɪdiə ]
sea creature
Echinoidea refers to a class of marine animals characterized by their round, spiny bodies. These creatures, commonly known as sea urchins, are found in oceans worldwide and play an important role in marine ecosystems.
Synonyms
Examples of usage
- Sea urchins use their spines for protection against predators.
- Echinoidea are important herbivores in coral reef ecosystems.
zoology
In zoology, Echinoidea is a taxonomic class within the phylum Echinodermata, which also includes sea stars, sand dollars, and sea cucumbers. These organisms are characterized by their pentaradial symmetry and endoskeleton made of ossicles.
Synonyms
Examples of usage
- Sea urchins belong to the class Echinoidea within the phylum Echinodermata.
Translations
Translations of the word "echinoidea" in other languages:
🇵🇹 equinodermes
🇮🇳 समुद्री साही
🇩🇪 Seeigel
🇮🇩 landak laut
🇺🇦 морські їжаки
🇵🇱 jeżowce
🇯🇵 ウニ
🇫🇷 oursins de mer
🇪🇸 erizos de mar
🇹🇷 deniz kestaneleri
🇰🇷 성게
🇸🇦 قنافذ البحر
🇨🇿 ježovky
🇸🇰 morské ježovky
🇨🇳 海胆
🇸🇮 morski ježki
🇮🇸 sæbjúgu
🇰🇿 теңіз кірпі
🇬🇪 ზღვის ზღარბები
🇦🇿 dəniz kirpisi
🇲🇽 erizos de mar
Word origin
The word 'Echinoidea' is derived from the Greek words 'ekhinos' meaning 'hedgehog' and 'eidos' meaning 'form'. It was first used in the early 19th century to describe the group of marine animals known as sea urchins. The classification of Echinoidea within the phylum Echinodermata was established by scientists studying the morphology and evolutionary relationships of these organisms.