CRENA
\kɹˈiːnə], \kɹˈiːnə], \k_ɹ_ˈiː_n_ə]\
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[Latin] Notch in a crenate margin, as of leaf; cleft, as anal cleft; deep groove, as longitudinal sulcus of heart.
By J.H. Kenneth
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In the plural, the small teeth or projections in the bones of the cranium, by means of which an accurate junction is formed at the sutures. Crenelure has also been used in surgery, for the gutter or groove in certain instruments, which is generally intended to secure the passage of cutting instruments; the groove, for example, of a director.
By Robley Dunglison
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A cleft, notch, or indentation.
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A rounded and flattened toothlike projection.
By Smith Ely Jelliffe
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