Hypertext Webster Gateway: "asternal"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Asternal \A*ster"nal\, a. [Pref. a- not + sternal.] (Anat.)
Not sternal; -- said of ribs which do not join the sternum.
From WordNet (r) 1.7 (wn)
asternal
adj : (anatomy) not connected to the sternum or breastbone;
"asternal ribs"
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