Noun:

1. indicator provided by the stationary arm whose shadow indicates the time on the sundial

GGFR人工伽马Gn.英语字母表第七个字母；G级电影；[音]G调Glyptotermes fujianensisn.福建树白蚁Glycosmis pseudoracemosan.华山小橘Gynostemma cardiospermumn.心籽绞股蓝Glyptopetalum aquifoliumn.冬青沟瓣Gysi incisive path maker盖西切道描记器Glaucolychna zonosphaeran.带宽银祝蛾glabello-alveolar line眉间齿槽线gyri temporalis inferior[医] 颞下回Glomeruli mesaginal cell肾小球系膜细胞gynecological procedures妇科手术

1. A stake used for this purpose was the earliest type of sundial and was called a gnomon.
   这种特定的标杆就是最早的一种日晷仪，人们称之为日晷仪标杆。