Sucker

1. A fish of the family Catostomidae.
2. A basal shoot of a tree or other plant that competes with the main stem, or a shoot from a lower limb which competes with that limb, such as certain branches of the tomato plant.
3. The organ by which some organisms, such as the leech, lamprey[?], and remora, attach to other organisms.
4. A type of hard candy.
5. A slang term for a gullible person.

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