pincushion

pincushion
noun

a small pad for holding pins
针垫
■(亦作 pincushion distortion)[mass noun]a form of optical distortion in which straight lines along the edge of a screen or a lens bulge towards the center
枕形畸变，枕形失真，正畸变
(亦作 pincushion protea)(S. African)an African shrub or tree related to the proteas, with rounded flower heads that resemble pincushions
(南非)枕形山龙眼
Genus Leucospermum, family Proteaceae
黎可斯帕属，山龙眼科