15-Letter Words Starting with O

Dehumanising, if CIA somehow infiltrates dissent

OBJECTIVENESS Objectivity.

Observability

Observational

OBSTINATENESS obstinate

Obstructionism

Filibusterers

Obstructive

Obtainability

OBTRUSIVENESS obtrusive

OCCIDENTALIZE

One of the cells comprising the oligodendroglia.

""A polymer that consists of two, three, or four monomers.""

A short polymer of two to twenty nucleotides.

Omnicompetence

Like some antennae

Like versatile antennas

Remind coalition about covering all angles

""ONTOGENETIC Of or pertaining to ontogenesis; as, ontogenetic phenomena. as, ontogenetic phenomena.""

Candor.

Openmouthed

Operationalism

Operationalist

OPERATIVENESS operative

Ophthalmology

An examiner of pupils, perhaps

Specialist in eye diseases

Important doctor of medicine.

Retinal inspection instruments

""OPHTHALMOSCOPE An instrument for viewing the interior of the eye, particularly the retina. Light is thrown into the eye by a mirror (usually concave) and the interior is then examined with or without the aid of a lens.""

Opinionated

OPPORTUNENESS opportune

Optoelectronic

ORCHESTRATION The arrangement of music for an orchestra; orchestral treatment of a composition; called also instrumentation. instrumentation.

Organometallic

Chemical has ruined oath on paper <197> gosh!

Orientational

ORTHODONTIC Of or pertaining to orthodontics or orthodontia.

Orthogonality

ORTHOGONALIZE

Orthophosphate

Medical Specialties ()

Osmoregulation

Plural or third person singular

OSTEOPATHIC Of or pertaining to osteopathy.

Camper's quality

OUTMANIPULATE

OUTSPOKENNESS outspoken

Present participle or gerund

Inflected form of ACCENTUATED Inflected form of ACCENTUATE To pronounce with an accent or with accents.

Overaccentuate

""ACHIEVEMENT The act of achieving or performing; an obtaining by exertion; successful performance; accomplishment; as, the achievement of his object. as, the achievement of his object.""

Overadjustment

ADVERTISING a communication publicly promoting some product or service.

""APPLICATION The act of applying or laying on, in a literal sense; as, the application of emollients to a diseased limb. as, the application of emollients to a diseased limb.""

""ARTICULATED United by, or provided with, articulations; jointed; as, an articulated skeleton. as, an articulated skeleton.""

Overarticulate

Overassessment

Too highly valued, as a business

Estimates the value of property too highly

""CENTRALIZED drawn toward a center or brought under the control of a central authority; as, centralized control of emergency relief efforts; centralized government. Opposite of decentralized.as, centralized control of emergency relief efforts; centralized government. Opposite of decentralized.""

Overcentralize

Overcommitment

COMMUNICATE To share in common; to participate in.

More than made up (for)

Tried too hard, in a way

Tries too hard to make up for a weakness

Rewards unduly

Acts excessively

Inflected form of COMPLICATED Inflected form of COMPLICATE Composed of two or more parts united; complex; complicated; involved.

Overcomplicate

With too much aplomb

Overconstruct

Target of satire in Dr. Seuss's 'The Lorax'

Target of satire in Dr. Seuss's "The Lorax"

CONTROLLING control

CULTIVATION The art or act of cultivating; improvement for agricultural purposes or by agricultural processes; tillage; production by tillage.

Overdecoration

Photographer's goof

Sierra Club concern

Do men ever love PT, working out, bodybuilding (wordplay)

Overdiscount

Overdiversity

Overdocument

""Inflected form of DRAMATIZING Inflected form of DRAMATIZE To compose in the form of the drama; to represent in a drama; to adapt to dramatic representation; as, to dramatize a novel, or an historical episode. as, to dramatize a novel, or an historical episode.""

On English research site, speaking at length and adding too much detail

ELABORATION The act or process of producing or refining with labor; improvement by successive operations; refinement.

Showed too much of a good time

Overenthusiasm

Unduly high appraisals

Unrealistic value assessments

Overevaluation

EXAGGERATED Enlarged beyond bounds or the truth.

Overexaggerate

EXPECTATION The act or state of expecting or looking forward to an event as about to happen.

Overextraction

""EXTRAVAGANT Wandering beyond one's bounds; roving; hence, foreign.""

Yet more contempt generated by such presumption (wordplay)

""Inflected form of FERTILIZING Inflected form of FERTILIZE To make fertile or enrich; to supply with nourishment for plants; to make fruitful or productive; as, to fertilize land, soil, ground, and meadows. as, to fertilize land, soil, ground, and meadows.""

Overidentify

A little too clever

Too fanciful

Overingenuity

Overintensity

Overinvestment

Overlengthen

Overmedication

OPINIONATED Stiff in opinion; firmly or unduly adhering to one's own opinion or to preconceived notions; obstinate in opinion.

ORCHESTRATE to write an orchestra score for; -- of a musical composition.

Overornament

Overpopulation

Surpluses

Overproportion

PROTECTIONS protection

Overrefinement

Overregulation

REPRESENTED represent

Oversaturation

""SENSITIVITY The quality or state of being sensitive; used chiefly in science and the arts; as, the sensitivity of iodized silver. as, the sensitivity of iodized silver.""

""Inflected form of SPECULATING Inflected form of SPECULATE To consider by turning a subject in the mind, and viewing it in its different aspects and relations; to meditate; to contemplate; to theorize; as, to speculate on questions in religion; to speculate on political events. as, to speculate on questions in religion; to speculate on political events.""

SPECULATION The act of speculating.

Overstability

""Inflected form of STIMULATING Inflected form of STIMULATE To excite as if with a goad; to excite, rouse, or animate, to action or more vigorous exertion by some pungent motive or by persuasion; as, to stimulate one by the hope of reward, or by the prospect of glory. as, to stimulate one by the hope of reward, or by the prospect of glory.""

""STIMULATION The act of stimulating, or the state of being stimulated.""

SWEETNESSES sweetness

Exploitation to the point of diminishing returns.

Overwithhold

Oxidoreductase

Arthritis drug [41 points]

""A broad-spectrum antibiotic, C 22 H 24 N 2 O 9 , derived from the actinomycete Streptomyces rimosus and used to treat a variety of bacterial infections.""