1. 耳垂
The lobe of your ear is the soft, fleshy part at the bottom.

2. （脑、肺等的）叶；（树叶的）裂片
A lobe is a rounded part of something, for example one of the sections of your brain or lungs, or one of the rounded sections along the edges of some leaves.

1. a rounded projection that is part of a larger structure

2. (anatomy) a somewhat rounded subdivision of a bodily organ or part

e.g. ear lobe

3. the enhanced response of an antenna in a given direction as indicated by a loop in its radiation pattern

4. (botany) a part into which a leaf is divided