The crossword solution for the term 'curtain rod' is 'tringle, ' which is a seven-letter word. A tringle is a type of curtain rod that is triangular in shape and is typically used to hang curtains or other window treatments. It is usually made of metal and is attached to the wall or ceiling with screws. The tringle is an ideal choice for hanging curtains because it is strong and can support the weight of the fabric.