Search the Dictionary

To open. [Poetic] Wilt thou not ope thy heart to know What rainbows teach and sunsets show Emerson.

Not concealed or secret; not hidden or disguised; exposed to view or to knowledge; revealed; apparent; as, open schemes or plans; open shame or guilt. His thefts are too open. Shak. That I may find him, and with secret gaze Or open admiration him behold. Milton.

A branch of physiognomy which deduces the knowledge of a person's temper and character from the appearance of the eyes.

founded on probable evidence; belief stronger than impression, less strong than positive knowledge; settled judgment in regard to any point of knowledge or action. Opinion is when the assent of the understanding is so far gained by evidence of probability, that it rather inclines to one persussion than to another, yet…

on those ordained. -- In order to, for the purpose of; to the end; as means to. The best knowledge is that which is of greatest use in order to our eternal happiness. Tillotson. -- Minor orders (R. C. Ch.), orders beneath the diaconate in sacramental dignity, as acolyte, exorcist, reader, doorkeeper. -- Money order.…

inary judgment; an ordinary book. An ordinary lad would have acquired little or no useful knowledge in such a way. Macaulay. Ordinary seaman (Naut.), one not expert or fully skilled, and hence ranking below an able seaman.

Knowledge or use of Oriental languages, history, literature, etc. London Quart. Rev.

f, pertaining to, or designating, a nitrogenous acid of osmium, H2N2Os2O5, forming a well-known series of yellow salts.

) Osmic tetroxide. [Obs.] (b) Osmic acid proper, an acid analogous to sulphuric acid, not known in the free state, but forming a well-known and stable series of salts (osmates), which were formerly improperly called osmites. -- Osmic tetroxide (Chem.), a white volatile crystalline substance, OsO4, the most stable and…

smine. It is a hard, infusible, bluish or grayish white metal, and the heaviest substance known. Its tetroxide is used in histological experiments to stain tissues. Symbol Os. Atomic weight 191.1. Specific gravity 22.477.

A large bird of the genus Struthio, of which Struthio camelus of Africa is the best known species. It has long and very strong legs, adapted for rapid running; only two toes; a long neck, nearly bare of feathers; and short wings incapable of flight. The adult male is about eight feet high.

An extinct genus of huge vertebrates, probably dinosaurs, known only from four-toed tracks in Triassic sandstones.

A tribe of Indians who, when first known, lived on the Ottawa River. Most of them subsequently migrated to the southwestern shore of Lake Superior.

n, or into, a state of want, loss, or deprivation; -- used of office, business, property, knowledge, etc.; as, the Democrats went out and the Whigs came in; he put his money out at interest. "Land that is out at rack rent." Locke. "He was out fifty pounds." Bp. Fell. I have forgot my part, and I am out. Shak.…

To learn out [i. e., completely, utterly]; to exhaust knowledge of. Naught, according to his mind, He could outlearn. Spenser. Men and gods have not outlearned it [love]. Emerson.

Too knowing or too cunning.

Pertaining to, or designating, a complex nitrogenous acid (C4H5N3O4) not known in the free state, but obtained, in combination with its salts, by a slow oxidation of uric acid, to which it is related.

s (H. palliatus), and the California, or black, oyster catcher (H. Bachmani) are the best known. -- Oyster crab (Zoöl.) a small crab (Pinnotheres ostreum) which lives as a commensal in the gill cavity of the oyster. -- Oyster dredge, a rake or small dragnet of bringing up oyster from the bottom of the sea. -- Oyster…

The study or knowledge of antiquities, esp. of prehistoric antiquities; a discourse or treatise on antiquities; archæology .

herbivorous Tertiary mammals, once supposed to have resembled the tapir in form, but now known to have had a more slender form, with a long neck like that of a llama. [Written also Palæotherium.]