Association, simply being introduced to someone or knowing who they are by interaction.

The focus will be on control by natural interaction.

The relationship between the two groups has long been tense and characterized by limited interaction.

We thought we could learn from you, by close observation and interaction, but it is not enough.

In physics and chemistry, heat is energy transferred from one body to another by thermal interactions.

Larry, who often seems dazed by ordinary human interaction, like ordering coffee or making small talk, comes to life.

These devices accelerate particles by interaction with an electromagnetic field.

They bind by ionic interactions with a variety of proteins.

The tradition of secular narratives continued, invigorated by interaction with the above.

He teaches only one student per class as he believes that education must take place by one-on-one interaction.