verb, -hered, -her⋅ing.| 1. | to stay attached; stick fast; cleave; cling (usually fol. by to): The mud adhered to his shoes. |
| 2. | Physics. (of two or more dissimilar substances) to be united by a molecular force acting in the area of contact. |
| 3. | to be devoted in support or allegiance; be attached as a follower or upholder (usually fol. by to): to adhere to a party. |
| 4. | to hold closely or firmly (usually fol. by to): to adhere to a plan. |
| 5. | Obsolete. to be consistent. |
| 6. | to cause to adhere; make stick: Glue will adhere the tiles to the wallboard. |