adj. Of or relating to a mineral that can be cut or severed smoothly by a knife but cannot withstand pulverization. [Latin sectilis, from sectus, past participle of secāre, to cut; see sek- in the Appendix of Indo-European roots.] sec·tili·ty (-tĭlĭ-tē) n. |
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2022 by HarperCollins Publishers. All rights reserved.