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.
Calculating the difference will give you a good idea of your horseâs actual bodyweight. Offering around 90% accuracy, weigh tapes are a convenient way of gauging your horseâs weight. Most tapes are double sided, one side calibrated to provide figures for ponies under 14.2hh, the other for horses above 14.2hh. To use a weight tape: 1  Stand your horse on a firm, level surface and encourage him to stand square; he should be relaxed with his head in his ânormal standingâ position.  Drop the tape over the lowest part of his whithers, making sure that you have the relevant horse / pony side facing you for easy reading.