1. Plural of odorizer; substances or devices that add a scent or smell to something, especially to make an odorless gas detectable for safety purposes.
Usage: Most commonly used in the context of natural gas, which is odorless and potentially dangerous; odorizers are added so leaks can be detected by smell.

Examples

• Natural gas companies use odorizers to make gas leaks detectable by the human nose.
• The odorizers added to the pipeline ensure that any escape of gas will be immediately noticed.
• Without odorizers, it would be impossible to smell a dangerous gas leak in your home.
• The chemical odorizers used in the industry are carefully regulated for safety and effectiveness.
• Mercaptan is one of the most common odorizers added to natural gas supplies.