| 1. | Linguistics. a sequence of phonemes constituting a minimal unit of grammar or syntax, and, as such, a representation, member, or contextual variant of a morpheme in a specific environment. Compare allomorph (def. 2). |
| 2. | Biology. an individual of one particular form, as a worker ant, in a species that occurs in two or more forms. |
| 3. | to transform (an image) by computer. |
| 4. | to be transformed: morphing from a tough negotiator to Mr. Friendly. |