Select a letter for some words
Oarsman
One who uses, or is skilled in the use of, an oar; a rower.
Obdiplostemony
The condition of being obdiplostemonous.
Oblivion
The act of forgetting, or the state of being forgotten; cessation of remembrance; forgetfulness.
Oblocutor
A disputer; a gainsayer.
observed
perceived with the eyes and sometimes with other senses; .
Observer
One who observes, or pays attention to, anything; especially, one engaged in, or trained to habits of, close and exact observation; .
Obturator
That which closes or stops an opening.
Occupy
To hold possession; to be an occupant.
Occurse
Same as .
Octonaphthene
A colorless liquid hydrocarbon of the octylene series, occurring in Caucasian petroleum.
odometer
An instrument attached to a vehicle or connected, as by a flexible cable, to the wheel of a vehicle, which measures the distance traversed.
Offerture
Offer; proposal; overture.
off-guard
not watching for possible danger; not alert; .
off-line
Not connected; -- of computers or computer peripherals normally connected or intended to be connected to other computers by a communications line; .
Oilman
One who deals in oils; formerly, one who dealt in oils and pickles.
ojo
A spring, surrounded by rushes or rank grass; an oasis.
Oleaginousness
Oiliness.
Oligosiderite
A meteorite characterized by the presence of but a small amount of metallic iron.
Om
A mystic syllable or ejaculation used by Hindus and Buddhists in religious rites, -- orig. among the Hindus an exclamation of assent, like , then an invocation, and later a symbol of the trinity formed by , , and .
Omnifarious
Of all varieties, forms, or kinds.
Oncost
In cost accounting, expenditure which is involved in the process of manufacture or the performance of work and which cannot be charged directly to any particular article manufactured or work done (as where different kinds of goods are produced), but must be allocated so that each kind of goods or work shall bear its proper share.
one-eared
Relating to or having or hearing with only one ear; monaural. Opposite of .
Onomatology
The science of names or of their classification.
Onward
Toward a point before or in front; forward; progressively; .
Ogonium
A special cell in certain cryptogamous plants containing ospheres, as in the rockweeds (), and the orders and .
Ophorectomy
Ovariotomy.
Opaqueness
The state or quality of being impervious to light; opacity.
Open-headed
Bareheaded.
Operative
A skilled worker; an artisan; esp., one who operates a machine in a mill or manufactory.
Opercular
The principal opercular bone or operculum of fishes.
Ophthalmoscopy
A branch of physiognomy which deduces the knowledge of a person's temper and character from the appearance of the eyes.
Opiparous
Sumptuous.
Oracle
To utter oracles.
Orangeroot
An American ranunculaceous plant (), having a yellow tuberous root; -- also called , , etc.
Orbituary
Orbital.
Orby
Orblike; having the course of an orb; revolving.
Orcharding
The cultivation of orchards.
Orchotomy
The operation of cutting out or removing a testicle by the knife; castration.
Ordinable
Capable of being ordained or appointed.
organized crime
Groups of persons organized for illegal purposes, such as bootlegging, conducting illegal gambling, loansharking, extortion, etc.; -- a general term encompassing most forms of criminal groups, but especially those that are consolidated into families more or less recognizing each other's different regions of operation; sometimes considered synonymous with the or the .
Orismology
That department of natural history which treats of technical terms; the science of defining technical terms.
Orkneyan
Of or pertaining to the Orkney islands.
Ornithology
That branch of zology which treats of the natural history of birds and their classification.
Orphanhood
The state or condition of being an orphan; orphanage.
Orsellinic
Pertaining to, or designating, an organic acid obtained by a partial decomposition of orsellic acid as a white crystalline substance, and related to protocatechuic acid.
Orthoscope
An instrument designed to show the condition of the superficial portions of the eye.
Orthotomous
Having two cleavages at right angles with one another.
ossiculate
Of or pertaining to an ossicle.
Ossify
To become bone; to change from a soft tissue to a hard bony tissue.
Osteoplasty
An operation or process by which the total or partial loss of a bone is remedied.
Ostiary
The mouth of a river; an estuary.
Otalgic
Of or pertaining to otalgia.
Otitis
Inflammation of the ear.
Ourebi
A small, graceful, and swift African antelope, allied to the klipspringer.
Outfit
A fitting out, or equipment, as of a ship for a voyage, or of a person for an expedition in an unoccupied region or residence in a foreign land; the expense of, or allowance made for, equipment, as by the government of the United States to a diplomatic agent going abroad.
outmoded
same as , , 3.
Outromance
To exceed in romantic character.
Outwear
To wear out; to consume or destroy by wearing.
overachiever
a student who attains higher standards than expected based on the IQ score.
Overburden
The waste which overlies good stone in a quarry.
Overcredulous
Too credulous.
Overforce
Excessive force; violence.
Overglide
To glide over.
Overhardy
Too hardy; overbold.
overlearn
To learn (a fact or skill) repetitively, beyond the point where it can be immediately recalled; in experimental psychology, to continue to learn beyond the point where the criterion of adequate learning has been reached.
Overload
An excessive load; the excess beyond a proper load.
Overmeasure
Excessive measure; the excess beyond true or proper measure; surplus.
Overpost
To post over; to pass over swiftly, as by post.
Overslaugh
To hinder or stop, as by an overslaugh or an impediment;
Overstare
To stare wildly.
Overstore
To overstock.
Overturnable
Capable of being, or liable to be, overturned or subverted.
Ovigerous
Bearing eggs; oviferous.
Oviparous
Producing young from eggs; ; -- opposed to .
Oviposit
To deposit or lay (an egg).
Owler
One who owls; esp., one who conveys contraband goods. See ,
Owre
The aurochs.
Oxacid
See .
Oxycymene
Hydroxy cymene. Same as .
Oxyphenol
A phenol, , produced by the distillation of catechin; called also , and now .