This. They could at least have though of making the text box’s size adjust to the amount of text, to make it look less … glitchty.
Another negative side effect is that words sometimes have a completely different meaning when used together with a different word, especially in combination with auxiliary verbs. In this case I prefer to have seperate entries for those case as a visual divider, so to speak. Having them thrown all together really makes things hard, and to me it is hard to understand why anyone considered this to be a good idea to begin with.
I mean, adding a new definition to an already existing one in the same entry might be useful in some situations, but then the users should decide whether they are in such a situation, as obviously the application itself is unable to do so properly.