side·lin·er 
(sīdlī′nər)
(sīdlī′nər)n.
One that remains on the sidelines; a nonparticipant.
- thymocyte
- thymol
- thymoma
- thymosin
- thymus
- thyr-
- thyreophoran
- thyro-
- thyrocalcitonin
- thyroglobulin
- thyroid
- thyroidal
- thyroid-binding globulin
- thyroid cartilage
- thyroidectomy
- thyroid gland
- thyroid hormone
- thyroiditis
- thyroid-stimulating hormone
- thyrotoxicosis
- thyrotrophic
- thyrotrophin
- thyrotropic
- thyrotropin
- thyrotropin-releasing hormone