| nitro- or (before a vowel) nitr- | |
| —combining form | |
| 1. | indicating that a chemical compound contains a nitro group, -NO2: nitrobenzene |
| 2. | indicating that a chemical compound is a nitrate ester: nitrocellulose |
| [from Greek nitron | |
| nitr- or (before a vowel) nitr- | |
| —combining form | |
| [from Greek nitron | |
| a stew of meat, vegetables, potatoes, etc. |
| a children's mummer's parade, as on the Fourth of July, with prizes for the best costumes. |