boric

It’s the naturally derived form of pyrethrin, which, like boric acid, is deadly to insects, but has very low toxicity to humans and other mammals.
Many companies advertise ‘green’ pest control. But is it possible? And does it work?|Kevin Brasler | Washington Consumers' Checkbook|April 8, 2021|Washington Post
Qualitative tests demonstrated the presence of antipyrin, free boric acid and sodium borate.
The Propaganda for Reform in Proprietary Medicines, Vol. 1 of 2|Various
The composition given is: sulphur, niter, cinnamon and boric acid in gaseous solution.
The Propaganda for Reform in Proprietary Medicines, Vol. 1 of 2|Various
She cried a bit when there was no more to be had, but a warm bath with some boric acid in it made her sleepy.
The Pillar of Light|Louis Tracy

Formaldehyde, boric acid or salicylic acid may be added to preserve the milk.
Detection of the Common Food Adulterants|Edwin M. Bruce
If boric acid either free or combined is present, the turmeric paper will be turned to a cherry-red color.
Detection of the Common Food Adulterants|Edwin M. Bruce

British Dictionary definitions for boric

boric

/ (ˈbɔːrɪk) /

adjective

of or containing boronAlso: boracic

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012