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/ˌmædɹəˈpɔɹaɪt/ · noun
(zoology) A calcareous opening in the body of echinoderms which connects the water vascular system to the environment..
a similar Madreporite deposite is noticed a few feet above the coal seam
Whether madreporite occurs naturally in Spain, I do not know
Madreporite was regarded as a variety of calcite and anthraconite a lamellar variety of madreporite
Use madreporite when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Madreporite means (zoology) A calcareous opening in the body of echinoderms which connects the water vascular system to the environment..
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
a similar Madreporite deposite is noticed a few feet above the coal seam
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