Dog Dictionary
- Saber Tail
- Sable
- Sacrum
- Saddle
- Saddle Back
- Sandy
- Scent
- Scent Hound
- Scissors Bite
- Sclera
- Scottie Cramp
- Screw Tail
- Seal
- Season
- Seborrhea
- Second Thigh
- Secondary Coat
- Secretary
- Sedge
- Seeing Eye Dog
- Selective Breeding
- Self Color
- Semi-Prick Ears
- Senile Cataracts
- Septum
- Service Dog
- Set up
- Setters
- Shelly
- Shock
- Short Back
- Show Quality
- Sickle Hocked
- Sickle Tail
- Sidegait
- Sidewinding
- Sighthound
- Silent Heat
- Silky Coat
- Single Coat
- Single Tracking
- Sire
- Skeleton
- Skull
- Skully
- Slab-Sided
- Sled Dogs
- Slew Feet
- Slicker
- Slip Collar
- Sloping Shoulder
- Small-Waisted
- Smooth Coat
- Snatching Hocks
- Snippy
- Snow Nose
- Soles
- Solid
- Spaniels
- Spay
- Special
- Specialty
- Spectacles
- Spike Tail
- Splashed
- Splayfoot
- Splenic Torsion
- Spontaneous Mutation
- Sporting Group
- Spread
- Spread Hocks
- Spring
- Spring of Ribs
- Square Body
- Squirrel Tail
- Stack
- Stag Red
- Stand Away Coat
- Standard
- Standing Heat
- Standoff Coat
- Staring Coat
- Station
- Steep
- Stenotic Nares
- Stern Tail
- Sternum
- Steward
- Stifle
- Stilted
- Stop
- Straight In Pastern
- Straight Shoulders
- Straight-Hocked
- Stud Book
- Stud Dog
- Stud Fee
- Sub-Aortic Stenosis
- Superciliary Arches
- Superintendent
- Suspension Trot
- Swan Neck
- Swayback
- Sweepstakes
- Symmetry
- Systemic Lupus Erythematosus (SLE)