perpendicular

adjective

/ˌpɜːpənˈdɪkjələ(r)/

/ˌpɜːrpənˈdɪkjələr/

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perpendicular (to something) forming an angle of 90° with another line or surface; vertical and going straight up垂直的；成直角的
- Are the lines perpendicular to each other?這些直線相互垂直嗎？
- The staircase was almost perpendicular (= very steep).樓梯幾乎成垂直的了。
Extra Examples
- an almost perpendicular staircase一段幾乎垂直的樓梯
- two mutually perpendicular directions兩個互爲直角的方向
Oxford Collocations Dictionary
verbs
- be
adverb
- almost
- nearly
See full entry
Perpendicular
(architecture建築) connected with a style of architecture common in England in the 14th and 15th centuries垂直式的（英格蘭 14、15 世紀盛行的建築風格）
CultureThe Perpendicular style in architecture was marked by large windows, lines going straight up and down, and ceiling patterns in stone called fan vaulting. An example of this style is the chapel of King's College, Cambridge.compare Decorated style, Early English
Topics Buildingsc2

Word Originlate Middle English (as an adverb meaning ‘at right angles’): via Old French from Latin perpendicularis, from perpendiculum ‘plumb line’, from per- ‘through’ + pendere ‘to hang’.

perpendicular

noun

/ˌpɜːpənˈdɪkjələ(r)/

/ˌpɜːrpənˈdɪkjələr/

the perpendicular

[singular]

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a line, position or direction that is exactly perpendicular垂直線（或位置、方向）
- The wall is a little out of the perpendicular.牆壁有點傾斜。
Word Originlate Middle English (as an adverb meaning ‘at right angles’): via Old French from Latin perpendicularis, from perpendiculum ‘plumb line’, from per- ‘through’ + pendere ‘to hang’.