English-Thai Dictionary
echinodermata
N ไฟลัม ของ สัตว์ ทะเล ที่ มี เปลือก เป็น หนาม อย่างป ลาดาว
Webster's 1913 Dictionary
ECHINODERMATA
E *chi `no *der "ma *ta, n. pl. Etym: [NL. , fr. Gr. (Zoöl.)
Defn: One of the grand divisions of the animal kingdom. By many writers it was formerly included in the Radiata. [Written also Echinoderma.]
Note: The species usually have an exterior calcareous skeleton, or shell, made of many pieces, and often covered with spines, to which the name. They may be star-shaped, cylindrical, disk-shaped, or more or less spherical. The body consists of several similar parts (spheromeres ) repeated symmetrically around a central axis, at one end of which the mouth is situated. They generally have suckers for locomotion. The group includes the following classes: Crinoidea, Asterioidea, Ophiuroidea, Echinoidea, and Holothurioidea. See these words in the Vocabulary, and also Ambulacrum.
New American Oxford Dictionary
Echinodermata
Echi no der ma ta |iˌkīnəˈdərmətə, ˌekənə -ɪˌkaɪnəˈdərmətə |Zoology a phylum of marine invertebrates that includes starfishes, sea urchins, brittlestars, crinoids, and sea cucumbers. They have fivefold radial symmetry, a calcareous skeleton, and tube feet operated by fluid pressure. ORIGIN modern Latin (plural ), from Greek ekhinos ‘hedgehog, sea urchin ’ + derma ‘skin. ’
Oxford Dictionary
Echinodermata
Echinodermata |ɪˌkʌɪnə (ʊ )dəˈmɑːtə, ˌɛkɪn -, -ˈdəːmətə | ▶plural noun Zoology a phylum of marine invertebrates which includes starfishes, sea urchins, brittlestars, crinoids, and sea cucumbers. They have fivefold radial symmetry, a calcareous skeleton, and tube feet operated by fluid pressure. ORIGIN modern Latin (plural ), from Greek ekhinos ‘hedgehog, sea urchin ’ + derma ‘skin ’.
The Wordsmith Dictionary