I. me ‧ di ‧ an 1 /ˈmiːdiən/ BrE AmE noun [countable]
1 . American English ( also ˈmedian strip ) a narrow area of land that separates the two sides of a big road in order to keep traffic travelling in different directions apart SYN central reservation British English
2 . technical the middle number or measurement in a set of numbers or measurements that have been arranged in order
3 . technical a line passing from one of the points of a ↑ triangle to the centre of the opposite side
II. median 2 BrE AmE adjective
[ Date: 1300-1400 ; Language: Latin ; Origin: medianus , from medius ; ↑ medium 2 ]
1 . being the middle number or measurement in a set of numbers or measurements that have been arranged in order ⇨ average :
The median age of the group is 42.
2 . in or passing through the middle of something