| SCA | of or relating to any of the scalene muscles |
|---|---|
| SCA | (mathematics) of a triangle having three sides of different lengths |
| SCA | any of four pairs of muscles extending from the cervical vertebrae to the second rib |
| SCA | a triangle with no two sides of equal length |
| SCA | any of four pairs of muscles extending from the cervical vertebrae to the second rib |
| SCA | discomfort and vascular symptoms and loss of sensation in a shoulder and arm |
| SCA | an electronic pulse counter used to count pulses that occur too rapidly to be recorded individually |
| SCA | (zoology) having the body covered or partially covered with thin horny plates, as some fish and reptiles |
| SCA | of or related to a musical scale |
| SCA | ascent by or as if by a ladder |
| SCA | act of measuring or arranging or adjusting according to a scale |
| SCA | the act of arranging in a graduated series |