Translation of transgénico

Some idiot copied it from there and inserted it into our vocabulary builder. He is allowed to do it as long as he indicates that sentences where taken from another source and are for self usage only.
I've been working on and off on the dictionary during the entire week, and I'll spend some more hours on it this coming weekend. Sometimes he would get a bit mixed up and use formal Castilian sometimes instead of informal.
Nice to meet you... Yes i need help in Portuguese. I am form Spain and I can help you with my native language if you have email or a phone, so that we can talk directly. Please call me.