A diatomic molecule when the nuclei have actually contrary spin guidelines: parahydrogen.
Of or regarding one of three possible isomers of a benzene ring with two connected chemical teams in which the carbon atoms with affixed teams are separated by two unsubstituted carbon atoms: para-aminobenzoic acid.
Parachute; parachutist: paratroops.
beside, near, alongside
In isomeric benzene derivatives, getting the two substituents in opposing positions (compare ortho- and meta-.)
Forming words associated with activities performed with a parachute.
A prefix signifying alongside of, beside, beyond, against, amiss; as parable, literally, a placing beside; paradox, what is unlike opinion; parachronism.
A prefix denoting: (a) Likeness, similarity, or link, or the material resembles, but is distinct from, that to the name which it is prefixed; as paraldehyde, paraconine, etc.; additionally, an isomeric adjustment. (b) especially: (Organ. Chem.) That two groups or radicals substituted in benzene nucleus are reverse, or in the particular roles 1 and 4; 2 and 5; or 3 and 6, as paraxylene; paroxybenzoic acid. Cf. Ortho-, and Meta-. In addition made use of adjectively.