gnomon
gnomon
[ˈnəʊmɒn]
noun
gnomonic
[-ˈmɒnɪk]
adjective
语源
[ˈnəʊmɒn]
noun
- the projecting piece on a sundial that shows the time by the position of its shadow
（日晷的）指时针（通过其影子的位置来显示时间）
■(Astronomy)a structure, especially a column, used in observing the sun's meridian altitude
(天文)圭表，日圭 - (Geometry)the part of a parallelogram left when a similar parallelogram has been taken from its corner
(几何)磬折形
gnomonic
[-ˈmɒnɪk]
adjective
语源
- mid 16th cent.: via Latin from Greek gnōmōn 'indicator, carpenter's square' (related to gignōskein 'know')
热门查询
- downstreet adv.去闹市区
- downsun adj.& adv.背着太阳的[地]
- downswing n.（高尔夫球棍）向下的一挥，下降趋势
- downthrow n.地盘下降，投下，陷落
- downtick n.低于前盘的股票市场交易
- downtime n.（工厂等由于检修、待料等的）停工期
- downtonian adj.当顿的
- downtown n.市中心区,（市中）商业区 adj.商业区的，闹市区的 adv.在商业（闹市）区,到闹市区
- downtrend n.下降趋势
- downtrod adj.被践踏的，被蹂躏的，被压制的
- downtrodden adj.被践踏的，受压迫的
- downturn n.（价格或活动）开始下降,衰退，低迷时期
考试词汇表
