The story
Ultimately from the prefix ortho-.
Etymology from Wiktionary, CC BY-SA 4.0.
ortho
or·thoToday it means: An isomer of a benzene derivative having two substituents adjacent on the ring. Full definition →
Today it means: An isomer of a benzene derivative having two substituents adjacent on the ring. Full definition →
Ultimately from the prefix ortho-.
Etymology from Wiktionary, CC BY-SA 4.0.