Unprotected
121Open pipe — Open O pen, a. [AS. open; akin to D. open, OS. opan, G. offan, Icel. opinn, Sw. [ o]ppen, Dan. aaben, and perh. to E. up. Cf. {Up}, and {Ope}.] 1. Free of access; not shut up; not closed; affording unobstructed ingress or egress; not impeding or… …
122Open vowel — Open O pen, a. [AS. open; akin to D. open, OS. opan, G. offan, Icel. opinn, Sw. [ o]ppen, Dan. aaben, and perh. to E. up. Cf. {Up}, and {Ope}.] 1. Free of access; not shut up; not closed; affording unobstructed ingress or egress; not impeding or… …
123Open-front furnace — Open O pen, a. [AS. open; akin to D. open, OS. opan, G. offan, Icel. opinn, Sw. [ o]ppen, Dan. aaben, and perh. to E. up. Cf. {Up}, and {Ope}.] 1. Free of access; not shut up; not closed; affording unobstructed ingress or egress; not impeding or… …
124Open-hearth furnace — Open O pen, a. [AS. open; akin to D. open, OS. opan, G. offan, Icel. opinn, Sw. [ o]ppen, Dan. aaben, and perh. to E. up. Cf. {Up}, and {Ope}.] 1. Free of access; not shut up; not closed; affording unobstructed ingress or egress; not impeding or… …
125Open-hearth process — Open O pen, a. [AS. open; akin to D. open, OS. opan, G. offan, Icel. opinn, Sw. [ o]ppen, Dan. aaben, and perh. to E. up. Cf. {Up}, and {Ope}.] 1. Free of access; not shut up; not closed; affording unobstructed ingress or egress; not impeding or… …
126Open-hearth steel — Open O pen, a. [AS. open; akin to D. open, OS. opan, G. offan, Icel. opinn, Sw. [ o]ppen, Dan. aaben, and perh. to E. up. Cf. {Up}, and {Ope}.] 1. Free of access; not shut up; not closed; affording unobstructed ingress or egress; not impeding or… …
127Open-timber roof — Open O pen, a. [AS. open; akin to D. open, OS. opan, G. offan, Icel. opinn, Sw. [ o]ppen, Dan. aaben, and perh. to E. up. Cf. {Up}, and {Ope}.] 1. Free of access; not shut up; not closed; affording unobstructed ingress or egress; not impeding or… …
128Siemens-Martin process — Open O pen, a. [AS. open; akin to D. open, OS. opan, G. offan, Icel. opinn, Sw. [ o]ppen, Dan. aaben, and perh. to E. up. Cf. {Up}, and {Ope}.] 1. Free of access; not shut up; not closed; affording unobstructed ingress or egress; not impeding or… …