The phrase "adjoining side" is correct and usable in written English.
It can be used in contexts related to geometry, architecture, or describing physical spaces where two surfaces or areas meet.
Example: "In the diagram, the area of the triangle is calculated using the length of the base and the height from the adjoining side."
Alternatives: "adjacent side" or "neighboring side".
A grand staircase (which leads into the palace) provides additional audience space on an adjoining side.
As a way of drawing the crowds into the adjoining side streets and plaza, Mr. Evans also invented the outdoor Sovereign Plaza Ballroom for WaterFire nights.
The old downtown at the centre of the city became overshadowed in the 1950s by the Strip, the portion of Las Vegas Boulevard (and adjoining side streets) running some 4 miles (6 km) to the southwest, where the city's most ostentatious and luxurious hotels, restaurants, casinos, and restaurants were built.
As you enter Denver Relief's waiting room, there is a leather sofa on one wall and three single chairs on the adjoining side.
The back room (and an adjoining side room that contains four types of specialty drywall, some American, some European, are framed in their original state) adds yet another direction for us to consider in this difficult conception.
The neurosurgical intensive care unit includes five patient beds in a common room and an additional bed in an adjoining side room.
It is easy to define the area of a shape whose edges are straight; for example, the area of a rectangle is just the product of the lengths of two adjoining sides.
The audience is most often located around three sides of a thrust stage, though they can be located on two sides opposite each other (as they are in alley stage or transverse stage theatres, sometimes called centre stage theatres) or on two adjoining sides (as they are in L-shaped theatres).
Eliot Ness, in his 1957 book, "The Untouchables," recalled how agents with sawed-off shotguns crept up fire escapes and stairs in 1930 to raid the still, which Ness said could turn out 20,000 gallons a day and fed booze directly through a webwork of piping to railroad cars, parked on the adjoining siding.
A 5 6 mm long incision was made on adjoining sides of the artery and vein respectively and heparin saline (100 IU/ml) was used to syringe the wounds.
Rub an amount of water extending directly over two adjoining sides of each square.
