Meaning ofkeelin English

Noun

1. a longitudinal beam along a ship's hull; provides stability
2. a flat piece of material for control and stability
3. the rigid bottom part of an object (e.g. iceberg)
   The ship's keel was damaged during the storm.
4. a flattened plate or spiral ridge (in zoology)
   The keel of the bird's breastbone was distinctive.
5. a botanical term for the lowest petals (of a flower)
   The keel of the orchid flower is shaped like a boat.