形容词左首的，用左手的，左旋的
形容词dextral
1. 左的：sinisterly 不吉祥地 | sinistral 左的 | sinistrorse 左旋的
2. 左利的：singularity of a curve 曲线的奇异性 | sinistral 左利的 | sinistrality 左偏性
3. 左侧的：single-station smoke detector 单点感烟火灾探测器 | sinistral 左侧的 | sink 散热装置
4. 左旋的：sinistral vergence 左旋倾向 | sinistral 左旋的 | sink a well 钻一口井
adj
1. of or on the left
e.g. a sinistral gastropod shell with the apex upward has its opening on the left when facing the observer
a sinistral flatfish lies with the left eye uppermost
2. preferring to use left foot or hand or eye
e.g. sinistral individuals exhibit dominance of the left hand and eye