Credit: ABC Photo: Grey's Anatomy Season 8, Episode 15: Mark & Jackson Tend to a Patient

No, Teratoma is not the latest celebrity baby name — it's one the diagnoses that came into play in on Grey's Anatomy Season 8, Episode 14: "All You Need Is Love.” Here's the info about that and some other jargon from the latest chapter.

Peanut candy sent young Clementine into anaphylactic shock, a life-threatening allergic reaction usually occurring immediately after exposure to certain allergens (like bee stings, shellfish, pineapple and, yep, peanuts). The shock occurs when one's immune system reacts to the allergen so intensely that one's blood pressure drops and airway constricts. Luckily, these reactions are often resolved with epinephrine.

Janelle's headaches and seizures occurred when her body was fighting a teratoma, a tumor that contains all different types of tissues. These tumors can often contain hair, teeth, bone. But it gets even more freaky: rare teratomas also contain complex organs such as eyes, torsos, and hands. Yep, now we've lost our appetites.

Grey’s Anatomy airs Thursdays at 9 pm ET/PT on ABC.

Satisfy your Grey’s Anatomy addiction: Like us on Facebook and Follow us on Twitter and Tumblr.