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open enrollment
open-eyed
open-faced
open-faced sandwich
open-field
open fracture
open go
open-heart surgery
open-hearth
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open-hearth
o·pen-hearth


adjective 
Definition:
 
producing high-quality steel: describes a steel-making process that uses a furnace with a shallow hearth and a low roof reverberatory furnace to produce high-quality steel
Encarta® World English Dictionary [North American Edition] © & (P)2009 Microsoft Corporation. All rights reserved. Developed for Microsoft by Bloomsbury Publishing Plc.
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