The first term is the prototype vertical part of the continuity equation, when no corrections are needed to that. (judithcurry.com)
In DNA: Black Painting: I, the painting is divided into four equal vertical parts, each width roughly corresponding to the width of the artist's thin body. (galerielelong.com)
In vertical bending, the ramus — the posterior more or less vertical part on each side of the lower jaw — splays outward, tensing the chin area. (sciencedaily.com)