What is "jelled"

Usage examples of "jelled".

It rained all day, which didn't matter as we were engaged indoors in the Athenaeum dining room, shooting the scene where Cibber's suspicions of his wife's canoodling jelled into inescapable certainty.

For amusement, elderly mariners jelled the ichor of the new recruits by regaling them with tales of what it was like to meet a gulletfish in mid-ocean and try to make it charge a barbed prong.