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sternite
Sterno
sterno-
sternoclavicular
sternocostal
sternpost
sternsheets
sternson
sternum
sternutation
sternutatory
sternward
sternway
steroid
sterol
-sterone
stertor
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sternum

ster·num [ stúrnəm ] (plural ster·nums or ster·na [ stúrnə ])


noun 
Definition:
 
1.  ( technical )
Same as  breastbone


2. arthropod's abdominal covering: the chitinous ventral plate covering the abdomen of an arthropod

[Mid-17th century. Via modern Latin< Greek sternon "breastbone"]

ster·nal adjective
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