adj

• (chiefly botany) Having three or more lobes or veins arising from a common point.
  "Although palmate leaves are typical of most Western maples, a number of species have leaves without lobes."
• (botany, of leaves) Having more than three leaflets arising from a common point, often in the form of a fan.
  "The horse chestnut, buckeye and hickory trees have palmate leaves. That is, the broad oval leaflets are all set around the tip of a common leaf stem, spreading in a circle, like the ribs of a palm leaf fan."
• (rare) Having webbed appendage; palmated.
  "The Palmate Newt is a common Western European amphibian."
• (rare) Hand-like; shaped like a hand with extended fingers

noun

• (chemistry) Any salt or ester of ricinoleic acid (formerly called palmic acid); a ricinoleate.