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oat-cell
oat grass
oatcake
oaten
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oatmeal
Oaxaca
OB
Ob.
Ob’
ob-
ob. (1)
ob. (2)
ob-gyn
Ob’-Irtysh
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OB

OB


abbr 
Definition:
 
1. medicine obstetric

2. medicine obstetrician

3. medicine obstetrics

4. broadcasting outside broadcast

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