adjective uk
/ˌpɜː.pənˈdɪk.jʊ.lər/ us
/ˌpɝː.pənˈdɪk.juː.lɚ/

› formal at an angle of 90° to a horizontal line or surface: We scrambled up the nearly perpendicular side of the mountain. › specialized mathematics at an angle of 90° to another line or surface: The wheel rotates about an axis which is perpendicular to the plane.

perpendicularly

adverb uk
/-li/ formal or specialized us

(Definition of perpendicular from the Cambridge Advanced Learners Dictionary & Thesaurus
© Cambridge University Press)

What is the pronunciation of perpendicular?
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the occasion when someone performs or presents something to the public for the first time

November 19, 2014

As part of an occasional series on the tricky subject of phrasal verbs, this blog looks at ones formed with the verb ‘come’. If you are reading this blog, I’m sure you already know come from, as it is one of the first things you learn in class: I come from Scotland/Spain.