单词	perpendicularly
释义	perpendicularperpendicular1 /ˌpɚpənˈdɪkyəlɚ/ adjective Etymology ETYMOLOGYperpendicular1 Origin: 1300-1400 Old French perpendiculer, from Latin, from perpendiculum plumb line, from pendere to hang 1 math, geometry if one line is perpendicular to another line, they form an angle of 90 degrees where they cross:  perpendicular linesperpendicular to First Street is perpendicular to Main Street.2not leaning to one side or the other but exactly upright SYN vertical:  a perpendicular pole3Perpendicular in the style of 14th- and 15th-century English churches which are decorated with straight upright lines—perpendicularly adverb
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