It's the abbreviation for Mean Corpuscular Hemoglobin. This is a measure for how much hemoglobin per red blood cell count. MCH stands for Mean Corpuscular Hemoglobin. It is a measure of the average amount of hemoglobin in each red blood cell. 9 people found this useful.
Human Interface Device (HID) Definition - What does Human Interface Device (HID) mean? A human interface device (HID) is a method by which a human interacts with an electronic information system either by inputting data or providing output. A myriad of HID devices exist. The most common are the keyboards, mice, computer speakers, webcams and headsets.
Legal Definition of conceal. 1  1 : to prevent disclosure of or fail to disclose (as a provision in a contract) especially in violation of a duty to disclose. 2  2a : to place out of sight Editor's note: A weapon need only be placed out of ordinary observation in order to be considered a concealed weapon.