'Palm' in the Bible

The priest shall also take some of the log of oil, and pour it into the palm of his own left hand;

The priest shall pour some of the oil into his left palm,

Now on the first day you shall take for yourselves the foliage of beautiful trees, branches of palm trees, and boughs of thick (leafy) trees, and willows of the brook [and make booths of them]; and you shall rejoice before the Lord your God for seven days.