a. rare. [ad. L. type *corōniform-is, f. corōna crown: see -FORM. In mod.F. coroniforme.] Crown-shaped.

1

1776.  J. Lee, Introd. Bot. (ed. 3), 39. The Stigma is … Coroniform, or Crown-shaped in Pyrola.

2

1882.  in Syd. Soc. Lex.

3