A Quick and Simple Dictionary

median

1. Adjective.  Relating to Media or Medes.
2. Adjective.  (obsolete) Of laws, rules etc.: unchanging, invariable.
3. Noun.  a Mede.
4. Noun.  The northwestern Iranian language of the Medes, attested only by numerous loanwords in Old Persian, few borrowings in Old Armenian and some glosses in Ancient Greek; nothing is known of its grammar.
5. Noun.  (context, anatomy) A central vein or nerve, especially the median vein or median nerve running through the forearm and arm. (defdate, from 15th c.) .
6. Noun.  (statistics) The quantity or value at the midpoint of a set of values, such that the variable is equally likely to fall above or below it; the middle value of a discrete series arranged in magnitude (or the mean of the middle two terms when there is an even number of terms). (defdate, from 19th c.) .
7. Noun.  (US) The median strip; the area separating two lanes of opposite-direction traffic. (defdate, from 20th c.) .
8. Adjective.  Situated in the middle; central, intermediate. (defdate, from 16th c.) .
9. Adjective.  (anatomy, botany) In the middle of an organ, structure etc.; towards the median plane of an organ or limb. (defdate, from 16th c.) .
10. Adjective.  (statistics) Having the median as its value. (defdate, from 19th c.) .