What's the difference betweenand

Adjacent vs Perpendicular - What's the difference?

is that adjacent is lying next to, close, or contiguous; neighboring; bordering on while perpendicular is (architecture) of a style of english gothic architecture from the fourteenth and fifteenth centuries.

is something that lies next to something else, especially the side of a right triangle that is neither the hypotenuse nor the opposite.

is (us) next to; adjacent to; beside.

English

(-)
• Lying next to, close, or contiguous; neighboring; bordering on.
Because the conference room is filled, we will have our meeting in the adjacent room.
• Just before, after, or facing.
The picture is on the adjacent page .
• Synonyms

* (lying next to) abutting, adjoining, contiguous, juxtaposed, near

Antonyms

* (lying next to) apart, distant, nonadjacent

Noun

(en noun)
• Something that lies next to something else, especially the side of a right triangle that is neither the hypotenuse nor the opposite.
• * 1980 , Faber Birren, The textile colorist
Again, the key colors have twice the area of the adjacents .
• * 2011 , Mark Zegarelli, ACT Math For Dummies (page 194)
Picking out the opposite, the adjacent , and the hypotenuse
• Preposition

(English prepositions)
• (US) Next to; adjacent to; beside.----
• perpendicular

English

(wikipedia perpendicular)

• (geometry) At or forming a right angle (to).
• * {{quote-magazine, date=2012-03, author=(Henry Petroski) , title=Opening Doors , volume=100, issue=2, page=112-3 , magazine= citation , passage=A doorknob of whatever roundish shape is effectively a continuum of levers, with the axis of the latching mechanism—known as the spindle—being the fulcrum about which the turning takes place. Applying a force tangential to the knob is essentially equivalent to applying one perpendicular to a radial line defining the lever.}}
In most houses, the walls are perpendicular to the floor .
• Synonyms

* evendown * normal * orthogonal

Noun

(en noun)
• (geometry) A line or plane that is perpendicular to another.
• A device such as a plumb line that is used in making or marking a perpendicular line.