| 单词 | perpendicular |
|---|---|
| 音标 | [`pə:pən'dikjulə] |
| 解释 | a.垂直的 |
| 红宝书 | 【英】 adj. 垂直的(exactly upright, vertical) 【记】 per(全部)＋pend(挂) ＋icular→全部挂的 状态→垂直的 【例】 Any two adjacent sides of a square are perpendicular. |
| 字源 | 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. |
| 不择手段背单词 | adj. 垂直的 = upright = vertical 【源】原指: 英国哥特式建筑风格的, 以强调垂直部份为特点 【记】per全部, pend挂, icular－全部挂的状态－垂直的 |
| 趣味全助记 | 【记】per + pend- 悬挂，悬挂的就是垂直的 【相关】perpend (记：因为悬而未决而)仔细考虑 |
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