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parathyroid gland
parathyroid hormone
parathyroidectomy
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paratrooper
paratyphoid fever
paravane
paraxial
parazoan
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parazoan

par·a·zo·an [ pàrrə zṓ ən ] (plural par·a·zo·a [ pàrrə zṓ ə ])


noun 
Definition:
 
sponge: a member of the subkingdom of invertebrate animals that includes sponges. Subkingdom Parazoa.

[Early 20th century. < modern Latin Parazoa< Greek para "beside," after Protozoa, Metazoa]
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