Yeah, toxic goop can be a pain. That's why you start off with a flask of water and can refill it at the temple: in case of draining health, dump into a hole in the ground and wash off in puddle.
Roguelite breaks more of these rules, but has at least some of the connecting points to roguelikes (for example Noita or Dead Cells which both have procgen levels, permadeath, complexity and hack'n'slash gameplay)
The line between roguelike and roguelite is wobbly, but basically - usually roguelike breaks at most one or two rules of the weird Berlin convention that set the rules (yes, there are Roguelikes that break these rules, like no separate maps), but they do so in a non-obvious way.
roguelike mean a game that play exactly like the game rogue, Top-down, Turn based, RPG, Permadeath, floors, etc... basically rogue near copies
while roguelite mean at least partially inspired by rogue, Noita has permadeath, floors, basically nowadays any Dungeon Crawler types are called roguelite
