Gloomy.
Of birds: sitting persistently and protectively on a nest, in order to hatch eggs.
Of any creature or person: showing an interest in raising young.
Brooding, dwelling upon one's thoughts; moody.
A female bird in the condition to incubate eggs; a broody hen, duck, etc.
denormal
Less than normal.
A person whose abilities are less than normal.
That part of the axis of a curved line which is intercepted between the ordinate and the normal.