Sentence:  The surface of the extracellular space at the base of the cone <WSD>pedicle</WSD> in goldfish has been estimated to be between 0.01 to 0.1 µm 2 depending on the fixation procedure used [ C. A. V. Vandenbranden, " et al"., "Vision Res." 
Meaning of the word marked with <WSD> tags:  peduncle (any sense)