This is the 5045th most frequent Portuguese word.
líquidas
"Liquídas" in English means "liquids."
Here, 'líquidas' describes substances as having the property of being in liquid form, acting as an adjective modifying 'substâncias'.
As substâncias líquidas devem ser armazenadas em recipientes adequados.
Liquid substances must be stored in appropriate containers.
In this context, 'líquidas' is used metaphorically to indicate 'net' hours, or hours that exclude certain intervals or durations.
As horas trabalhadas serão líquidas, sem os intervalos.
The hours worked will be net, excluding breaks.
Here, 'líquidas' is used as an adjective to describe 'receitas' (revenues), conveying the meaning of resulting amounts after deductions.