brainstems is brainstem's Plural Form

brainstem

US [ˈbreɪnˌstem]

UK ['breɪn.stem]

n.脑干
Web脑乾；脑干部位；脑干部分

Plural Form：brainstems

E-E

Web Definition

n.	1. the part of the brain above the spinal cord between the left and right halves of the brain