n a widely distributed system consisting of all the cells able to ingest bacteria or colloidal particles etc, except for certain white blood cells
n a rare heavy polyvalent metallic element that resembles manganese chemically and is used in some alloys; is obtained as a by-product in refining molybdenum
n ancient Egyptian sun god with the head of a hawk; a universal creator; he merged with the god Amen as Amen-Ra to become the king of the gods
n the syllable naming the second (supertonic) note of any major scale in solmization
[计] 远程输入服务
[医] 网状内皮系统