What is "pulsations"

Usage examples of "pulsations".

Valentine in the extremity of her terror joined her hands, -- for she felt that the moment had arrived to ask for courage, -- and began to pray, and while uttering little more than incoherent words, she forgot that her white shoulders had no other covering than her long hair, and that the pulsations of her heart could he seen through the lace of her nightdress.

He stroked it as he had seen the centaurs do and it responded with flowing pulsations, but it neither shrank nor grew longer, nor did it loosen its grip.