diamond drill

rotary drill set with black diamonds at its end (used for perforating and boring in rock)

English contemporary dictionary. 2014.

Look at other dictionaries:

  • Diamond drill — Drill Drill, n. 1. An instrument with an edged or pointed end used for making holes in hard substances; strictly, a tool that cuts with its end, by revolving, as in drilling metals, or by a succession of blows, as in drilling stone; also, a drill …   The Collaborative International Dictionary of English

  • Diamond drill — Diamond Di a*mond (?; 277), n. [OE. diamaund, diamaunt, F. diamant, corrupted, fr. L. adamas, the hardest iron, steel, diamond, Gr. ?. Perh. the corruption is due to the influence of Gr. ? transparent. See {Adamant}, {Tame}.] 1. A precious stone… …   The Collaborative International Dictionary of English

  • diamond drill — noun : a usually annular drill faced with bort diamonds and used for rock boring * * * a drill having a hollow, cylindrical bit set with diamonds, used for obtaining cores of rock samples. [1820 30] * * * diamond drill, a drill or borer which… …   Useful english dictionary

  • diamond-drill — diˈamond drill noun A borer whose bit is set with bort • • • Main Entry: ↑diamond …   Useful english dictionary

  • diamond drill — a drill having a hollow, cylindrical bit set with diamonds, used for obtaining cores of rock samples. [1820 30] * * * …   Universalium

  • diamond drill — /ˈdaɪmənd drɪl/ (say duymuhnd dril) noun a drill having a hollow, cylindrical bit set with diamonds, used for obtaining cores of rock samples for geological or mineralogical examination …   Australian English dictionary

  • Drill — Drill, n. 1. An instrument with an edged or pointed end used for making holes in hard substances; strictly, a tool that cuts with its end, by revolving, as in drilling metals, or by a succession of blows, as in drilling stone; also, a drill press …   The Collaborative International Dictionary of English

  • Drill jig — Drill Drill, n. 1. An instrument with an edged or pointed end used for making holes in hard substances; strictly, a tool that cuts with its end, by revolving, as in drilling metals, or by a succession of blows, as in drilling stone; also, a drill …   The Collaborative International Dictionary of English

  • Drill pin — Drill Drill, n. 1. An instrument with an edged or pointed end used for making holes in hard substances; strictly, a tool that cuts with its end, by revolving, as in drilling metals, or by a succession of blows, as in drilling stone; also, a drill …   The Collaborative International Dictionary of English

  • Drill sergeant — Drill Drill, n. 1. An instrument with an edged or pointed end used for making holes in hard substances; strictly, a tool that cuts with its end, by revolving, as in drilling metals, or by a succession of blows, as in drilling stone; also, a drill …   The Collaborative International Dictionary of English

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