Sentence:  The <WSD>symplectics</WSD> (9) consist of a somewhat curved central triangular portion with the base upward, and anteriorly and posteriorly from this extends a wing-like process. 
Meaning of the word marked with <WSD> tags:  A bone in the teleostean fishes that forms the lower ossification of the suspensorium, and which articulates below with the quadrate bone by which it is firmly held.