Absolute Humidity, often just referred to as 'the humidity', is a measure of the actual amount of water vapour in a particular sample of air: measured as a partial pressure (vapour pressure/hPa or millibars); a mixing ratio (gm water vapour/kg of dry air), dew point etc.elative Humidity-expressed commonly as a percentage value, is the ratio of the actual amount of water vapour present in a sample (the Absolute Humidity) to that amount that would be needed to saturate that particular sample.
Freebase(0.00 / 0 votes)Rate this definition: Ajiaco. Ajiaco is a soup common to Colombia. In the Colombian capital of BogotÃ¡, ajiaco is a popular dish typically made with chicken, three varieties of potatoes, and the Galinsoga parviflora herb, commonly referred to in Colombia as guascas.
Iliac artery aneurysm. An iliac artery aneurysm is a dilatation of the iliac artery. A normal iliac artery measures up to 1 cm in diameter. An iliac artery that is wider than that is aneurysmal. Isolated iliac artery aneurysms are uncommon. If aortic aneurysms are perhaps present in 4% of people, isolated iliac aneurysms exist in 0.1%. Iliac artery aneurysms are more common in conjunction with an aortic aneurysm. As many as 50% of abdominal aortic aneurysms are associated with an iliac artery aneurysm.