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osteoderm
osteogenesis
osteogenesis imperfecta
osteogenic sarcoma
osteoid
osteology
osteolysis
osteoma
osteomalacia
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ostiole
os·ti·ole [ óstee l ] (plural os·ti·oles)


noun 
Definition:
 
pore in algae or fungi: a small pore or opening in some algae or fungi, through which reproductive spores pass
[Mid-19th century. < Latin ostiolum "little door" < ostium "opening"]
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