buttonlike

button +‎ -like

buttonlike (comparative more buttonlike, superlative most buttonlike)

1. Resembling a button.
   • 1851, Herman Melville, Moby-Dick, Epilogue,

     […] I was then, but slowly, drawn towards the closing vortex. When I reached it, it had subsided to a creamy pool. Round and round, then, and ever contracting towards the button-like black bubble at the axis of that slowly wheeling circle, like another Ixion I did revolve.

   • 1922, E. E. Cummings, The Enormous Room, New York: Boni and Liveright, Chapter 7, p. 153,

     [He] was smoking slowly and calmly, and looking at nothing at all with his black buttonlike eyes.

• buttony