Asteroidea
Definition
A major taxonomic class of marine invertebrates in the phylum Echinodermata, grouping all true species of starfish; they are characterized by a flat central disc body from which multiple radiate arms (typically five) extend symmetrically, covered by a calcareous exoskeleton and equipped with tube feet for locomotion.
Bilingual Equivalents
- Asteroidea
- Sea stars class
Grammatical & Source Details
| Inflection Type | Proper feminine noun, standard fixed Latin biological descriptor, functions strictly in the singular paradigm. |
| Formation | Scientific compound derived from Greek 'aster' (star) paired with the standard systematic class suffix. |
| Spelling / Pronunciation | [as.te.roj.ˈde.a] |
| Source | International Code of Zoological Nomenclature & Marine Biology Directories |
Contextual Usage Examples
RO: Biologul marin a explicat că speciile incluse în clasa Asteroidea posedă o capacitate uimitoare de regenerare a brațelor pierdute.
EN: The marine biologist explained that the species included in the Asteroidea class possess an amazing capacity to regenerate lost arms.
RO: Multe organisme din clasa Asteroidea sunt prădători voraci care se hrănesc cu bivalve prin eversarea stomacului în afara corpului.
EN: Many organisms in the Asteroidea class are voracious predators feeding on bivalves by everting their stomach outside the body.
RO: În cadrul expediției oceanografice au fost colectate noi specimene ce aparțin grupului extins Asteroidea.
EN: During the oceanographic expedition, new specimens belonging to the extended Asteroidea group were collected.
Idioms & Phrases
Morfologie de Asteroidea / Asteroidea morphology
RO: Ansamblul trăsăturilor anatomice, cum ar fi placa madrepoară și sistemul acvifer, folosite pentru definirea clasei.
EN: The ensemble of anatomical traits, such as the madreporite plate and water vascular system, used to define the class.
Specii din clasa Asteroidea / Asteroidea species
RO: Totalitatea varietăților de stele de mare răspândite de la zonele de coastă până în abisul marilor oceane.
EN: The totality of starfish varieties distributed from coastal zones to the abyss of the great oceans.
Fosile de Asteroidea / Fossil asteroideans
RO: Rămășițe calcaroase pietrificate ale unor stele de mare preistorice, utilizate în studii de paleontologie evolutivă.
EN: Petrified calcareous remains of prehistoric sea stars, utilized in evolutionary paleontology studies.
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