Definition: A building used to grow plants, particularly one with large glass windows or plastic sheeting to trap heat from sunlight even in intemperate seasons or climates.

Alright class, settle down and let’s take a look! Today we’re tackling the word “greenhouse,” it's a lovely term, you see. The dictionary gives us a good start, don't you agree? Let’s break it down with some rhyme for clarity: “A building used to grow plants, that’s plain to view, Especially ones with glass – shiny and new! Large windows are the key, let sunshine stream in bright, But trapping all that heat is what they do with might!” See, it's about keeping warm, a cozy little space, Even when winter winds blow with icy grace. The plastic sheeting helps too, you see, To hold onto the warmth for the plants to be free! Think of it like this: sunlight comes in, but can’t get out so fast, So the temperature rises, and the plants they last! Does that make sense? Any questions about what a greenhouse is all about?