Definition of tongued-and-grooved in English:

tongued-and-grooved

adjective

  • See tongue and groove

    • ‘According to the invention, the edges of the tongued-and-grooved block are bevelled such as to produce a trapezoidal form which can be used to facilitate the positioning of the block, and to adjust the block.’
    • ‘Nailing ceilings, one nails a wood tongued-and-grooved board in place while standing on planks laid across sawhorses.’
    • ‘Then there's the tongued-and-grooved joints, which enable the panels to fit tightly together.’