perpendicular

EN [ˌpɜː.pənˈdɪk.jə.lə(ɹ)] [pɝ.pɛnˈdɪk.ju.lɝ] [pɝ.pənˈdɪk.jə.lɝ]
WPerpendicular
• In elementary geometry, the property of being perpendicular (perpendicularity) is the relationship between two lines which meet at a right angle (90 degrees). The property extends to other related geometric objects.
• A line is said to be perpendicular to another line if the two lines intersect at a right angle.
• Perpendicularity easily extends to segments and rays.
• A line is said to be perpendicular to a plane if it is perpendicular to every line in the plane that it intersects. Note that this definition depends on the definition of perpendicularity between lines.
EN Perpendicular  Definition of perpendicular in English Dictionary

• NounPREper-
1. (geometry) A line or plane that is perpendicular to another.
1. A device such as a plumb line that is used in making or marking a perpendicular line.
1. (geometry) At or forming a right angle (to).
1. 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.
3. More Examples
1. Used in the Middle of Sentence
• Muscle bundles run both parallel and perpendicular to the dermal surfaces of the fin (as seen in Fig 3 ), but only bundles running parallel to the dermal surface showed colabeling.
• The anteroposterior axis was perpendicular to the plane defined by the superoinferior axis and the transmalleolar axis.
• The anteroposterior axis was perpendicular to the plane defined by the superoinferior axis and the transcondylar axis.
• Part-of-Speech Hierarchy
• Nouns
• Countable nouns 0 0 Grammatically, this word "perpendicular" is an adjective. It's also a noun, more specifically, a countable noun.