Definition of 'mental defective'. Word Frequency. mental defective (ËmÉntÉl dÉªËfÉktÉªv) noun. old-fashioned. a person who suffers from a learning disability or from some form of mental illness. 'You must not say anything,' I enunciated slowly, as if speaking to a mental defective.
How to Measure. To measure your horse, have him stand square on a level surface. Hold the tape or stick so it is perpendicular to the ground and beside the horse so it is even with the top point of the horseâs withers. If you are using a proper measuring stick, lower the bar so it meets the top of the horseâs withers.
The typical maximum height of the horse, which is measured in hands. A hand is equivalent to 4 inches (101.6 millimeters). An animal under 14.2 hands is usually classified as a pony, while an animal with a height over 14.2 hands is considered to be a horse. Miniature horses tend to be around nine hands or less.