Checking saved dictionary data and trusted language sources. This will stop automatically if a source does not respond.
/ɪˈkaɪnə(ʊ)ˌdɜːm/ · noun
An animal of the phylum Echinodermata, comprising radially symmetric, spiny-skinned marine animals including seastars, sea urchins, sea cucumbers, crinoids, and sand dollars..
Comparatively few additions were therefore made to the previously known Echinoderm-fauna of Brazil, only a single species, a Leptasterias, being with certainty new to science.
Many echinoderms are still bilateral as larvae, and swim freely in the ocean like baby fish.
Use echinoderm when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Echinoderm means An animal of the phylum Echinodermata, comprising radially symmetric, spiny-skinned marine animals including seastars, sea urchins, sea cucumbers, crinoids, and sand dollars..
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
Comparatively few additions were therefore made to the previously known Echinoderm-fauna of Brazil, only a single species, a Leptasterias, being with certainty new to science.
FreeDictionaryAPI.com / Wiktionary · Original source · CC BY-SA 4.0
Dictionary data is provided by FreeDictionaryAPI.com and sourced from Wiktionary under its stated license.