perpendicular
                                                    英 [,pɜːp(ə)n'dɪkjʊlə]
                                                                        美 ['pɝpən'dɪkjəlɚ]
                        
                
                
                
                    
                        - adj. 垂直的,正交的;直立的;陡峭的
- n. 垂线;垂直的位置
 
                
                    
                                    
                
                                                                                        perpendicular 中文词源
                
                
                    perpendicular 垂直的per-,整个的,-pend,悬挂,词源同depend,pendulum.引申词义垂直的。
                 
                                                perpendicular 英文词源
                
                
                    
                        - perpendicular
- perpendicular: see pendulum
 
- perpendicular (adj.)
- late 15c., from adverb (late 14c.), from Old French perpendiculer, from Latin perpendicularis "vertical, as a plumb line," from perpendiculum "plumb line," from perpendere "balance carefully," from per- "thoroughly" (see per) + pendere "to weigh, to hang" (see pendant). As a noun from 1570s. Related: Perpendicularly; perpendicularity.
 
                
                                                    perpendicular 双语例句
                
                
                    1. The left wing dipped until it was perpendicular to the ground.  左翼下垂至与地面成90度角。 来自柯林斯例句
 - 2. Are the lines perpendicular to each other? 
- 这些直线相互垂直吗?
来自《权威词典》
 
- 3. The two lines of bones are set perpendicular to one another. 
- 这两排骨头相互垂直.
来自《简明英汉词典》
 
- 4. The plumbline is always perpendicular to the horizontal plane. 
- 铅垂线总是垂直于水平面的.
来自《现代英汉综合大词典》
 
- 5. Let AB be perpendicular to CD. 
- 设AB垂直于CD.
来自《现代汉英综合大词典》