What is the meaning of pitcher?

noun

• Baseball) the person who does the pitching. (
  • usage: "our pitcher has a sore arm"
  • synonyms: hurler, twirler
• An open vessel with a handle and a spout for pouring.
  • synonyms: ewer
• The quantity contained in a pitcher.
  • synonyms: pitcherful
• Botany) a leaf that that is modified in such a way as to resemble a pitcher or ewer. (
• The position on a baseball team of the player who throws the ball for a batter to try to hit.
  • usage: "he has played every position except pitcher"; "they have a southpaw on the mound"
  • synonyms: mound