Ortho, Meta, and Para in Organic Chemistry - ThoughtCo
https://www.thoughtco.com/ortho-meta-para-in-organic-chemistry-608213
Oct 02, 2019 · The terms ortho, meta, and para are prefixes used in organic chemistry to indicate the position of non-hydrogen substituents on a hydrocarbon ring (benzene derivative). The prefixes derive from Greek words meaning correct/straight, following/after, and similar, respectively. Ortho, meta, and para historically carried different meanings, but in 1879 the …
DA: 61 PA: 39 MOZ Rank: 37