1. HCO - Noun
2. HCO - Proper noun
HCO
(astronomy) Initialism of Harvard College Observatory.
HCO
Initialism of hearing carryover., a service or device that allows speech-disabled users with hearing to listen to the person they are calling.
"Department of Government Affairs," HCO Policy Letter of August 15, 1960; quoted in Miller, p. 241 The U.S. Government was already well aware of Hubbard's activities. Source: Internet
HCO Policy Letter of October 18, 1967, Issue IV. Source: Internet
In a similar manner, the weak unstable carbonic acid (H 2 CO 3 ) can lose one proton to form bicarbonate anion (HCO 3 − ) and lose a second to form carbonate anion (CO 3 2− ). Source: Internet
The extracellular fluid pH homeostat The pH of the extracellular fluids (which includes the blood plasma) is regulated by adjusting the ratio of the concentration of carbonic acid (H 2 CO 3 ) to that of the bicarbonate ions (HCO 3 - ) to equal 1:20. Source: Internet
Hydrogen H + is exchanged for other cations, and carbonate (HCO 3 − ) and hydroxide (OH − ) anions are exchanged for nutrient anions. Source: Internet
Some of the CO 3 2− combines with H + in the solution according to: : HCO 3 − is known as the bicarbonate ion. Source: Internet