| 释义 |
Definition of holothurian in English: holothuriannoun ˌhɒlə(ʊ)ˈθjʊərɪən Zoology A sea cucumber. Example sentencesExamples - There was significantly greater population density of holothurians when a coral reef was adjacent to the mangroves than a shoreline with coral reef alone or mangroves alone.
- However, holothurians retain pentameral (five-rayed) symmetry, with five rows of tube feet running from the mouth along the body.
- In fact, crinoids, holothurians, and ophiuroids rule the floor of the deep oceans at depths below 500 metres.
- Sea cucumbers are sausage-shaped holothurians that lie on the sandy floor of reef lagoons.
- The water vascular system, found in all echinoderms, accommodates the elongated body of the holothurians.
Origin Mid 19th century: from the modern Latin genus name Holothuria (from Greek holothourion, denoting a kind of zoophyte) + -an. Rhymes Arthurian, Ben-Gurion, centurion, durian, Khachaturian, Ligurian, Missourian, Silurian, tellurian Definition of holothurian in US English: holothuriannoun Zoology A sea cucumber. Example sentencesExamples - However, holothurians retain pentameral (five-rayed) symmetry, with five rows of tube feet running from the mouth along the body.
- Sea cucumbers are sausage-shaped holothurians that lie on the sandy floor of reef lagoons.
- There was significantly greater population density of holothurians when a coral reef was adjacent to the mangroves than a shoreline with coral reef alone or mangroves alone.
- In fact, crinoids, holothurians, and ophiuroids rule the floor of the deep oceans at depths below 500 metres.
- The water vascular system, found in all echinoderms, accommodates the elongated body of the holothurians.
Origin Mid 19th century: from the modern Latin genus name Holothuria (from Greek holothourion, denoting a kind of zoophyte) + -an. |