Night terror?

This morning Drake woke up at 1:30 am crying a cry we'd never heard before. It was one full of fear. It sounded more like a series of loud yells or screams, with inconsolable crying in between. Sometimes he wakes up in the middle of the night crying and it lasts a few minutes and he goes back to sleep. We don't even bother to check on him. But, last night my husband jumped out of bed to check on him, since the sound of the cry was so different. Andy said when he got to him, Drake's eyes were wide open and kind of wildly searching, and that it didn't seem he knew Andy was there. When Andy picked him up, he calmed a little, but would then kind of startle suddenly and the screams would start again.

Andy called me into the nursery a couple minutes later because he wanted me to see what was happening. When I took Drake, he was crying hard, but not doing the startle/scared cry thing anymore. After a couple more minutes he calmed down and was just kind of whimpering in my arms. Then he started smiling and cooing and being his usual adorable self. I put him back in his crib and he was quiet for a while, then cried here and there as he tried to fall back to sleep, but it was a normal cry and we let it go.

I was thinking this could have been a night terror? Has anyone experienced those and does this sound like that?