Actinozoa
Definition
A class of marine invertebrates within the coelenterate phylum, characterized by a sac-like body with a pronounced radial symmetry, featuring a mouth surrounded by tentacles and a gastric cavity partitioned by vertical septa. This structural grouping includes corals and sea anemones, most being sessile organisms that secrete a calcareous exoskeleton.
Bilingual Equivalents
- Actinozoa
- Anthozoa
Grammatical & Source Details
| Inflection Type | Feminine noun, structurally restricted or mostly utilized in its plural form. |
| Formation | Scientific compound from 'actino-' (denoting radial parts) and the Greek-derived plural component '-zoa' (animals). |
| Spelling / Pronunciation | [ak.ti.no.ˈzoa.re] |
| Source | Invertebrate Zoology and Marine Ecosystems Index |
Contextual Usage Examples
RO: Multe specii de actinozoare contribuie în mod activ la formarea recifelor de corali din oceanele tropicale.
EN: Many species of actinozoa actively contribute to the formation of coral reefs in tropical oceans.
RO: Biologul a colectat câteva fragmente fosilizate de actinozoare pentru a studia evoluția faunei marine preistorice.
EN: The biologist collected several fossilized fragments of actinozoa to study the evolution of prehistoric marine fauna.
RO: Aceste actinozoare posedă celule urzicătoare numite cnidocite, folosite pentru a captura prada de dimensiuni mici.
EN: These actinozoa possess stinging cells called cnidocytes, used to capture small-sized prey.
Idioms & Phrases
Clasa actinozoare / Actinozoa class
RO: Categorie taxonomică superioară care reunește toate organismele marine cu simetrie radiară și structură calcaroasă.
EN: A higher taxonomic category that brings together all marine organisms with radial symmetry and calcareous structures.
Colonie de actinozoare / Actinozoa colony
RO: Asociere structurală masivă de indivizi polipi care își unesc scheletele externe pentru a supraviețui.
EN: A massive structural association of individual polyps that unite their external skeletons to survive.
Schelet de actinozoare / Actinozoan skeleton
RO: Structură dură, de natură minerală, secretată de polipi, care rămâne fixată pe fundul mării după moartea organismului.
EN: A hard, mineral structure secreted by polyps, which remains fixed to the seabed after the organism's death.
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