In English grammar, an abstract noun is a noun or noun phrase that names an idea, event, quality, or conceptâfor example, courage, freedom, progress, love, patience, excellence, and friendship. An abstract noun names something that can't be physically touched. Contrast with concrete noun.
The adult human brain weighs on average about 1.2â1.4 kg (2.6â3.1 lb), or about 2% of total body weight, with a volume of around 1260 cm3 in men and 1130 cm3 in women, although there is substantial individual variation.
Weight of human brain male? The average weight of a human brain is 1336 grams or 2.95 pounds  for a male and 1198 grams or 2.64 pounds for a female. As a human  ages the weight of their brain tends to â¦decrease.