stilliform

stil·li·form

 (stĭl′ə-fôrm′)
adj.
Shaped like a drop; globular.

[Latin stilla, drop + -form.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

stilliform

(ˈstɪlɪˌfɔːm)
adj
rare having the shape of a drop or globule
[C20: from Latin stilla a drop + -form]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014