Meanings of scald steam in English

Sylvia felt her indecision mount in a cloud about her, like blinding, scalding steam.

Conduits, which could be flooded without warning, or filled with scalding steam or choking gas.

Voices hissed through her mind like scalding steam.

She was not a yeller -far from it -but the anger sprang forth seemingly from every pore in her body like scalding steam.

He involuntarily cringed, too, at the thought of the red-hot boilers ready to burst and deluge all surrounding objects with scalding steam and hissing water.