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echinoderms [ɪ'kaɪnə(u)dɜ:mz] n
life.sc., fish.farm. ostnokožec (Echinodermata)
echinoderm Marine coelomate animals distinguished from all others by an internal skeleton composed of calcite plates, and a water-vascular system to serve the needs of locomotion, respiration, nutrition or perception [i:'kainəudəm] n
environ. ostnokožec