jack post

jack post
noun
: either of the posts supporting the crankshaft of a deep-well-boring apparatus

* * *

a post for supporting a floor beam, having two telescoping sections, adjustable to any height.

Useful english dictionary. 2012.

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  • Jack post — Jack Jack (j[a^]k), n. [F. Jacques James, L. Jacobus, Gr. ?, Heb. Ya aq[=o]b Jacob; prop., seizing by the heel; hence, a supplanter. Cf. {Jacobite}, {Jockey}.] [1913 Webster] 1. A familiar nickname of, or substitute for, John. [1913 Webster] You… …   The Collaborative International Dictionary of English

  • jack post — a post for supporting a floor beam, having two telescoping sections, adjustable to any height. * * * …   Universalium

  • Jack — (j[a^]k), n. [F. Jacques James, L. Jacobus, Gr. ?, Heb. Ya aq[=o]b Jacob; prop., seizing by the heel; hence, a supplanter. Cf. {Jacobite}, {Jockey}.] [1913 Webster] 1. A familiar nickname of, or substitute for, John. [1913 Webster] You are John… …   The Collaborative International Dictionary of English

  • Jack afloat — Jack Jack (j[a^]k), n. [F. Jacques James, L. Jacobus, Gr. ?, Heb. Ya aq[=o]b Jacob; prop., seizing by the heel; hence, a supplanter. Cf. {Jacobite}, {Jockey}.] [1913 Webster] 1. A familiar nickname of, or substitute for, John. [1913 Webster] You… …   The Collaborative International Dictionary of English

  • Jack arch — Jack Jack (j[a^]k), n. [F. Jacques James, L. Jacobus, Gr. ?, Heb. Ya aq[=o]b Jacob; prop., seizing by the heel; hence, a supplanter. Cf. {Jacobite}, {Jockey}.] [1913 Webster] 1. A familiar nickname of, or substitute for, John. [1913 Webster] You… …   The Collaborative International Dictionary of English

  • Jack back — Jack Jack (j[a^]k), n. [F. Jacques James, L. Jacobus, Gr. ?, Heb. Ya aq[=o]b Jacob; prop., seizing by the heel; hence, a supplanter. Cf. {Jacobite}, {Jockey}.] [1913 Webster] 1. A familiar nickname of, or substitute for, John. [1913 Webster] You… …   The Collaborative International Dictionary of English

  • Jack block — Jack Jack (j[a^]k), n. [F. Jacques James, L. Jacobus, Gr. ?, Heb. Ya aq[=o]b Jacob; prop., seizing by the heel; hence, a supplanter. Cf. {Jacobite}, {Jockey}.] [1913 Webster] 1. A familiar nickname of, or substitute for, John. [1913 Webster] You… …   The Collaborative International Dictionary of English

  • Jack boots — Jack Jack (j[a^]k), n. [F. Jacques James, L. Jacobus, Gr. ?, Heb. Ya aq[=o]b Jacob; prop., seizing by the heel; hence, a supplanter. Cf. {Jacobite}, {Jockey}.] [1913 Webster] 1. A familiar nickname of, or substitute for, John. [1913 Webster] You… …   The Collaborative International Dictionary of English

  • Jack crosstree — Jack Jack (j[a^]k), n. [F. Jacques James, L. Jacobus, Gr. ?, Heb. Ya aq[=o]b Jacob; prop., seizing by the heel; hence, a supplanter. Cf. {Jacobite}, {Jockey}.] [1913 Webster] 1. A familiar nickname of, or substitute for, John. [1913 Webster] You… …   The Collaborative International Dictionary of English

  • jack crosstree — Jack Jack (j[a^]k), n. [F. Jacques James, L. Jacobus, Gr. ?, Heb. Ya aq[=o]b Jacob; prop., seizing by the heel; hence, a supplanter. Cf. {Jacobite}, {Jockey}.] [1913 Webster] 1. A familiar nickname of, or substitute for, John. [1913 Webster] You… …   The Collaborative International Dictionary of English

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