straight sinus n.
An unpaired sinus of the dura mater in the posterior part of the falx cerebri. Also called tentorial sinus.
| straight sinus | |
noun | |
| an unpaired sinus of the dura mater |
| a children's mummer's parade, as on the Fourth of July, with prizes for the best costumes. |
| an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle. |