1. a person who waters plants or gardens
2. a device or container used for watering plants

Examples

• The waterer comes by every morning to tend to the office plants.
• She hired a professional waterer for her extensive garden.
• The automatic waterer keeps the greenhouse plants hydrated.
• This ceramic waterer is perfect for small houseplants.
• The bird waterer in our yard attracts many species.
• He forgot to refill the plant waterer before leaving town.