noun, verb, glued, glu⋅ing.| 1. | a hard, impure, protein gelatin, obtained by boiling skins, hoofs, and other animal substances in water, that when melted or diluted is a strong adhesive. |
| 2. | any of various solutions or preparations of this substance, used as an adhesive. |
| 3. | any of various other solutions or preparations that can be used as adhesives. |
| 4. | to join or fasten with glue. |
| 5. | to cover or smear (something) with glue (sometimes fol. by up). |
| 6. | to fix or attach firmly with or as if with glue; make adhere closely: to glue a model ship together. |
