13-Letter Words Containing O

""TERRORISM The act of terrorizing, or state of being terrorized; a mode of government by terror or intimidation.""

""TERRORIST One who governs by terrorism or intimidation; specifically, an agent or partisan of the revolutionary tribunal during the Reign of Terror in France.""

Antithrombin

Anxiousness

Aortography

Apatosaurus

Without a regular schedule

Exciting venereal desire; stimulating the desire for sexual gratification.

Of the final catastrophe

Apocalyptism

Apocalyptist

Apodictical

Apomictical

APOSTROPHISE

Apostrophise

APOSTROPHIZE To address by apostrophe.

Apostrophize

APOTHEOSIZE To exalt to the dignity of a deity; to declare to be a god; to deify; to glorify.

Apperception

Appoggiatura

""APPORTION To divide and assign in just proportion; to divide and distribute proportionally; to portion out; to allot; as, to apportion undivided rights; to apportion time among various employments. as, to apportion undivided rights; to apportion time among various employments.""

Process of sharing out

Allocation

Appreciation

Cop's uncertainties (wordplay)

Suitably, properly

Aptly

APPROPRIATE Set apart for a particular use or person. Hence: Belonging peculiarly; peculiar; suitable; fit; proper.

Taking without permission of the owner

Annexation

Secretary's mounting support, helping to arrest one making embezzlement

""Appropriating; making, or tending to, appropriation; as, an appropriative act. as, an appropriative act.""

Appropriator

Roughly apply a mixer to batter

More or less

Circa

APPROXIMATE Approaching; proximate; nearly resembling.

Fairly close estimate

It's roughly right

Rough estimate

Approaching; approximate.

ARABICIZE ARABIC derived from gum arabic

Relating to or resulting from arbitration.

Arborescence

Tree farming - rub our article (anagram)

Cultivation of trees

Arborization

Archaeology

Past master (wordplay)

His work is in ruins (wordplay)

His career is in ruins (wordplay)

Jurassic fossil bird

Extinct primitive bird

An old bird's cheaper to X-ray, surprisingly!

Canterbury or York, for example

High church office

Senior church post

Archegoniate

Of or pertaining to an archdeacon.

Archipelago

The science of architecture.

Arduousness

(Of rocks) silver-bearing

One maturing at manoeuvres, revealing logic

Logical reasoning required to shift great mountain

Noble classes

Aromaticity

The act of impregnating or secting with aroma.

Arsenopyrite

A systematic description of the arteries.

Connecting an artery to a vein.

Arthropathy

Arthroscopy

They're expressive of joints on the move

ASPERGILL

ASPERGILL

Asphyxiation

Murder of a public figure

Two fools and one country - get killing

Murder of a prominent person

Assassinator

A female member of a legislative body called an assembly.assembly.

English word

Emphatic statements

They declare they'd like to cut at what are charged

Assiduous

Assimilation

""The state of an associate, as in Academy or an office.""

""Of or pertaining to association, or to an association.""

Associative

""ASSOCIATIVE Having the quality of associating; tending or leading to association; as, the associative faculty. as, the associative faculty.""

Assortative

""The lower layer of the earth's crust, below the lithosphere. It is estimated as from fifty to several hundred miles thick. It is less rigid than the lithosphere, but still rigid enough to transmit some transverse seismic waves.""

Very surprisingly

Astonishment

Pl. astrocytomas or astrocytomata (-m -t ) A malignant tumor of nervous tissue composed of astrocytes.

Like Armstrong or Glenn

Relating to the nature of stars

Asynchronism

""Formation of atheromatous deposits, especially on the innermost layer of arterial walls.""

""Formation of atheromatous deposits, especially on the innermost layer of arterial walls.""

Atomistical

Atrocious

Attorneyship

""ATTRIBUTION The act of attributing or ascribing, as a quality, character, or function, to a thing or person, an effect to a cause.""

Aggressive boldness; unmitigated effrontery

CD's ancestor

Input for a recorder

Augmentation

Auscultation

AUTECOLOGIC

""AUTHENTICATE To render authentic; to give authority to, by the proof, attestation, or formalities required by law, or sufficient to entitle to credit.""

Tyrannical writer meets Italian heretic

Enforcing strict rules

Enforcing strict obedience

Commanding and self-assured

Commanding, self-confident

Vested with power or influence

Official permission

The Henry Ford story (wordplay)

Carfax report (wordplay)

One's own Life (wordplay)

Autocatalyse

Autocatalysie

Pl. autocatalyses (-s z ) Catalysis of a chemical reaction by one of the products of the reaction.

Autocephaly

""Having its own head; independent of episcopal or patriarchal jurisdiction, as certain Greek churches.""

Aboriginal; indigenous; native.

""AUTOEROTIC sexually self-satisfying, as by masturbation.""

""Infection, such as recurrent boils, caused by bacteria, viruses, or parasites that persist on or in the body.""

Without thought

Spontaneously

Automobilist

Automorphism

Autonomical

Having more than two sets of chromosomes all derived from the same species.

An image produced upon photographic film by exposure of the film to a radioactive substance in close proximity to (usually in contact with) the film.

Autorotation

Autosuggest

Autoxidation

Avocational

Avoirdupois

Awesomeness

Axiological

By the use of axioms; in the form of an axiom.

Azathioprine

Celebrate host dancing for girls in New York (wordplay)

Bachelorhood

Backcountry

BACKGROUNDER background

Background

""The study of bacteria, especially in relation to medicine and agriculture.""

Pl. bacteriolyses (-s z ) Dissolution or destruction of bacteria.

Rupture of some pathogens by, eg, an antibody

Pl. bacteriolyses (-s z ) Dissolution or destruction of bacteria.

A virus which infects bacteria; -- also colloquially called phage in laboratory jargon.phage in laboratory jargon.

BACTERIOPHAGE a virus which infects bacteria; -- also colloquially called phage in laboratory jargon.phage in laboratory jargon.

Bacteriostat

BACTERIZE to subject to the action of bacteria.

Geopolitical term for extreme factionalism

Balletomania

Mr. X's favorite form of trickery (wordplay)

Banderillero

The act or process of barbarizing; an act that makes people primitive and uncivilized.

The quality or state of being barbarous; barbarity; barbarism.

Baroreceptor

Any of various fungi of the subdivision Basidiomycota.

Basidiospore

Basification

Stops on a Civil War tour

Bugler to stand playing in fields of war

Areas of conflict

First step towards sainthood

You finally quit cosmetic enhancement? That's a great blessing!

First stage in becoming saint in Roman Catholic church

Beauteous

BEHAVIORIST a psychologist who subscribes to behaviorism.

Bellicosity

Belonging

BENEFICIATE To reduce (ores).

""A crystalline compound, C 7 H 6 N 2 , that is used in organic synthesis and inhibits the growth of certain microorganisms.""

Benzoapyrene

Benzophenone

BESTSELLER

Certain scholarly person

Academic press worker

Compiler of a list of books on a particular subject or by a single author

Like the study of books

Bibliolatry

Excessive adherence to a literal interpretation of the Bible.

Bibliomaniac

Bibliopegist

Bibliophily

Love of books.

Bibliopolist

""Remedies the therapeutic use of reading material in the treatment of nervous diseases. ; bibliotherapist , n . ; bibliotherapeutic ,""

Biconcavity

""CONDITIONAL Containing, implying, or depending on, a condition or conditions; not absolute; made or granted on certain terms; as, a conditional promise. as, a conditional promise.""

Biconvexity

Going both ways

Functioning two ways

Coming-of-age story

Novel that focuses on character growth

Literary genre of "David Copperfield" or "Ender's Game"

Biliousness

Bimolecular

Bioactivity

Biochemical

""The property of being biologically compatible by not producing a toxic, injurious, or immunological response in living tissue: As a result of its strength and biocompatibility, the material is often used in medical devices.""

""The conversion of organic materials, such as plant or animal waste, into usable products or energy sources by biological processes or agents, such as certain microorganisms.""

Naturally breaking down

Capable of decaying

Able to be broken down by bacteria

BIOELECTRIC

Bioenergetic

Bioengineer

The study of the geographic distribution of organisms.

The study of the geographic distribution of organisms.

""(used with a sing. verb) The study of the mechanics of a living body, especially of the forces exerted by muscles and gravity on the skeletal structure.""

Biometrician

Biophysicist

See life science .

Bioscientist

Vital statistics.

Of or pertaining to biosystematics.

Such as genetic modification

Adjective (-ic)

Bipropellant

Bisectional

Gossipy types

Bean spillers

Tattletales

Comparative adjective or agent noun

In a blasphemous manner.

Plural or third person singular

Any of several fungal infections caused by blastomycetes; they are characterized by inflammatory lesions of skin and mucous membranes or internal organs.

BLASTULATION blastulate

A basal body in certain flagellated protozoans that consists of a minute mass of chromatin embedded in the cytoplasm at the base of the flagellum.

Spasmodic winking caused by the involuntary contraction of an eyelid muscle.

BLOCKBUSTING blockbust