This is the 14886th most frequent Russian word.
погружать
To immerse or submerge.
The word 'погружал' here means 'dipped', showing its literal sense of immersing something into a liquid.
Он погружал ложку в суп.
He dipped the spoon into the soup.
The word 'погружала' here is used metaphorically to mean 'immersed', illustrating the act of deeply involving someone in something.
Она погружала меня в свои мысли своими рассказами.
She immersed me into her thoughts with her stories.
In this context, 'погружал' conveys the act of submerging something for a particular purpose, showing application in a technical or experimental setting.