副翼羽; 二期梅毒疹
Secondary \Sec"ond*a*ry\, n.; pl. {Secondaries}. 1. One who occupies a subordinate, inferior, or auxiliary place; a delegate deputy; one who is second or next to the chief officer; as, the secondary, or undersheriff of the city of London. Old Escalus . . . is thy secondary. --Shak. 2. (Astron.) (a) A secondary circle. (b) A satellite. 3. (Zo["o]l.) A secondary quill.