Ortho-

[ortho-]

Connection with, or affinity to, one variety of isomerism, characteristic of the benzene compounds; -- contrasted with meta- or para-; as, the ortho position; hence, designating any substance showing such isomerism; as, an ortho compound.

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A combining form signifying straight, right, upright, correct, regular; as, orthodromy, orthodiagonal, orthodox, orthographic.

A combining form signifying straight, right, upright, correct, regular; as, orthodromy, orthodiagonal, orthodox, orthographic.

A combining form (also used adjectively)

The one of several acids of the same element (as the phosphoric acids), which actually occurs with the greatest number of hydroxyl groups; as, orthophosphoric acid. Cf. Normal.

Connection with, or affinity to, one variety of isomerism, characteristic of the benzene compounds; -- contrasted with meta- or para-; as, the ortho position; hence, designating any substance showing such isomerism; as, an ortho compound.

Ortho-

Or"tho- . [Gr. straight; akin to Skr. rdhva upright, vrdh to grow, to cause to grow.] 1. A combining form signifying straight, right, upright, correct, regular; as, orthodromy, orthodiagonal, orthodox, orthographic. 2. (Chem.) A combining form (also used adjectively), designating: (a) (Inorganic Chem.) The one of several acids of the same element (as the phosphoric acids), which actually occurs with the greatest number of hydroxyl groups; as, orthophosphoric acid. Cf. Normal. (b) (Organic Chem.) Connection with, or affinity to, one variety of isomerism, characteristic of the benzene compounds; -- contrasted with meta- or para-; as, the ortho position; hence, designating any substance showing such isomerism; as, an ortho compound. &hand; In the graphic representation of the benzene nucleus (see Benzene nucleus, under Benzene), provisionally adopted, any substance exhibiting double substitution in adjacent and contiguous carbon atoms, as 1 & 2, 3 & 4, 4 & 5, etc., is designated by ortho-; as, orthoxylene; any substance exhibiting substitution of two carbon atoms with one intervening, as 1 & 3, 2 & 4, 3 & 5, 4 & 6, etc., by meta-; as, resorcin or metaxylene; any substance exhibiting substitution in opposite parts, as 1 & 4, 2 & 5, 3 & 6, by para-; as, hydroquinone or paraxylene.

A combining form signifying straight, right, upright, correct, regular; as, orthodromy, orthodiagonal, orthodox, orthographic.

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Usage Examples

Misspelled Form

Ortho-, Ortho-, rtho-, Ortho-, Oertho-, O4rtho-, O5rtho-, Otrtho-, Ofrtho-, Oetho-, O4tho-, O5tho-, Ottho-, Oftho-, Oretho-, Or4tho-, Or5tho-, Orttho-, Orftho-, Orrtho-, Or5tho-, Or6tho-, Orytho-, Orgtho-, Orrho-, Or5ho-, Or6ho-, Oryho-, Orgho-, Ortrho-, Ort5ho-, Ort6ho-, Ortyho-, Ortgho-, Ortgho-, Ortyho-, Ortuho-, Ortjho-, Ortnho-, Ortgo-, Ortyo-, Ortuo-, Ortjo-, Ortno-, Orthgo-, Orthyo-, Orthuo-, Orthjo-, Orthno-, Orthio-, Orth9o-, Orth0o-, Orthpo-, Orthlo-, Orthi-, Orth9-, Orth0-, Orthp-, Orthl-, Orthoi-, Ortho9-, Ortho0-, Orthop-, Orthol-, Ortho0-, Ortho+-, Orthop-, Ortho{-, Ortho0, Ortho+, Orthop, Ortho{, Ortho-0, Ortho-+, Ortho-p, Ortho-{.