OR conj.
not both. It corresponds to either. You may ride either to London or to Windsor. It often connects a series of words or propositions, presenting a choice of either; as, he may study law, or medicine, or divinity, or he may enter into trade. If man's convenience, health, Or safety interfere, his rights and claims Are pa…
ORTHO- n.
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.
PAIN n.
nishment suffered or denounced; suffering or evil inflicted as a punishment for crime, or connected with the commission of a crime; penalty. Chaucer. We will, by way of mulct or pain, lay it upon him. Bacon. Interpose, on pain of my displeasure. Dryden. None shall presume to fly, under pain of death. Addison.…
PANCREAS n.
The sweetbread, a gland connected with the intestine of nearly all vertebrates. It is usually elongated and light-colored, and its secretion, called the pancreatic juice, is discharged, often together with the bile, into the upper part of the intestines, and is a powerful aid in digestion. See Illust. of Digestive appa…
PARA- n.
A prefix denoting: (a) Likeness, similarity, or connection, or that the substance resembles, but is distinct from, that to the name of which it is prefixed; as paraldehyde, paraconine, etc.; also, an isomeric modification. (b) Specifically: (Organ. Chem.) That two groups or radicals substituted in the benzene nucleus a…