13-Letter Words Starting with O

Distasteful - noble Jacobite (anagram)

Distasteful

Obnoxious

""OBJECTION The act of objecting; as, to prevent agreement, or action, by objection. as, to prevent agreement, or action, by objection.""

Objectivity.

Obliqueness

Obliteration

Disregardfulness

Obnoxious

Obnubilation

Obscurantism

People deliberately vague

Obscureness

Derived from visual evidence

Derived from visual examination - noble aviators (anagram)

Obsessional

Obsessive

Obsolescence

Obsolescent

Doctors specialising in childbirth

They make deliveries

Prenatal docs

Obstinate

(tr) to gain possession of; acquire; get

Obtrusive

Obviousness

""OCCIDENTAL Of, pertaining to, or situated in, the occident, or west; western; opposed to oriental; as, occidental climates, or customs; an occidental planet. oriental; as, occidental climates, or customs; an occidental planet.""

Cousteau, for one

One who studies the seas

Woods Hole scientist.

The exploration and scientific study of the ocean and its phenomena. Also called oceanology .

Oceanologist

The cardinal number equal to 10 57 .

People in their 80's

People in their ninth decade

80 year olds

ODONTOBLAST One of the more or less columnar cells on the outer surface of the pulp of a tooth; an odontoplast. They are supposed to be connected with the formation of dentine.

""(Life Sciences & Allied Applications / Plants) any epiphytic orchid of the tropical American genus Odontoglossum, having clusters of brightly coloured flowers""

Odorousness

Offensive

Nonchalant and cool manner

Officious

Oleandomycin

One or two spreads (wordplay)

Invention of 1868

*Kitchen sub*

""A man who investigates complaints and mediates fair settlements, especially between aggrieved parties such as consumers or students and an institution or organization.""

Ominousness

Able to judge or deal with all matters omnicompetence   n

Omnipresence

Oneiromancy

Onerousness

Ongoingness

ONOMASTIC Applied to a signature when the body of the instrument is in another's handwriting.

Onomastician

Onomatology

One versed in the history of names.

Onomatopoeia

Like "buzz" and "whir"

In an ontological manner.

Onychophoran

Openability

Without reservation

Openmouthed

How doctors perform in the theatre (wordplay)

Having no leader, manage sensibly with respect to employment

Operationism

Operationist

Operative

Operoseness

Opinionated

""Pl. opisthobranchs Any of various marine gastropod mollusks of the subclass Opisthobranchia, characterized by gills, a shell that is reduced or absent, and two pairs of tentacles.""

Opportune

Ready to take any advantage

Taking immediate advantage

Exploiting passing advantages

Part 2 of the quote

Points out ripe possibilities of advancement

Tie up troops in creating chances of advancement

One on the other side

Optimisation

Optimization

Optionality

Stage-managing

Getting it into the right scale for music or bosom (wordplay)

Arrangement for lecture about royal box

Arrangement of gold part encircling box

Composer's skill

Orderliness

Speeches welcoming surprising gains for companies

Societies

Organization

Biology ()

The origin and development of organs in animals and plants.

Biology ()

ORIENTALIZE to render Oriental; to cause to conform to Oriental manners or conditions.

""ORIENTATION The act or process of orientating; determination of the points of the compass, or the east point, in taking bearings.""

ORIENTEERING orienteer

Originality

Originative

Detailed artistic embellishment

Decoration, embellishment

Decorative work

""Of, belonging to, or characteristic of the order Ornithischia.""

Ornithology

Birdman (or woman)

Person who studies birds

Student of birds

Pl. oropharynges (-f -r n j z) or oropharynxes The part of the pharynx between the soft palate and the epiglottis.

Canine fixers

According to Cockney, they work on Hampstead Heath

Don't put in sir's tooth wonky! They should straighten it out

""ORTHOGONAL Rightangled; rectangular; as, an orthogonal intersection of one curve with another. as, an orthogonal intersection of one curve with another.""

""ORTHOGONAL Rightangled; rectangular; as, an orthogonal intersection of one curve with another. as, an orthogonal intersection of one curve with another.""

""OSCILLATION The act of oscillating; a swinging or moving backward and forward, like a pendulum; vibration.""

Ossification

Outbargain

Outdeliver

OUTDISTANCE

Outgeneral

Outglitter

OUTINTRIGUE

Outmaneuver

OUTMANIPULATE

OUTORGANIZE

Outperform

Outplacement

OUTPOPULATE

Outrebound

Lack of verbal restraint

Exceptionally well

Outstretch

Outwardness

Excess quantity

Excessive quantity

Surplus, excess

ACHIEVING achieve

ANALYZING analyze

Overanxiety

ARRANGING arrange

Overassert

Overassert

""ATTENTION The act or state of attending or heeding; the application of the mind to any object of sense, representation, or thought; notice; exclusive or special consideration; earnest consideration, thought, or regard; obedient or affectionate heed; the supposed power or faculty of attending.""

A bracing novel oddly needing to be straightened

Overbearing

Overbleach

Overborrow

BREATHING breathe

Overburden

Past tense or past participle

Overconcern

Cocky drunk I've confronted

Too sure of oneself

Excessively self-assured

CONSCIOUS Possessing the faculty of knowing one's own thoughts or mental operations.

""CONSTRUCT To put together the constituent parts of (something) in their proper place and order; to build; to form; to make; as, to construct an edlifice. as, to construct an edlifice.""

CONSUMING consume

DEMANDING demand

""DEPENDENT Hanging down; as, a dependent bough or leaf. as, a dependent bough or leaf.""

Overdesign

Overdirect

Overdiscount

Overdocument

DOMINANCE

Overeager

EDUCATING educate

""EDUCATION The act or process of educating; the result of educating, as determined by the knowledge skill, or discipline of character, acquired; also, the act or process of training by a prescribed or customary course of study or discipline; as, an education for the bar or the pulpit; he has finished his education. as, an education for the bar or the pulpit; he has finished his education.""

Showing excessive feeling

Showing excessive feelings

""ENCOURAGE To give courage to; to inspire with courage, spirit, or hope; to raise, or to increase, the confidence of; to animate; enhearten; to incite; to help forward; the opposite of discourage. discourage.""

ENERGETIC

Overengineer

EXERTIONS exertion

Overexpand

EXPANSION The act of expanding or spreading out; the condition of being expanded; dilation; enlargement.

adv. across a barrier or intervening space

Making too long

EXTENSION The act of extending or the state of being extended; a stretching out; enlargement in breadth or continuation of length; increase; augmentation; expansion.

""EXUBERANT Characterized by abundance or superabundance; plenteous; rich; overflowing; copious or excessive in production; as, exuberant goodness; an exuberant intellect; exuberant foliage. as, exuberant goodness; an exuberant intellect; exuberant foliage.""

FOCUSSING focus

Overgovern

Prone to spoil (others)

Yielding too much to temptation

Too ready to allow others their way

INDULGING indulge

INFLATING inflate

One cause of premature tread wear (4,9)

Overinform

""INGENIOUS Possessed of genius, or the faculty of invention; skillful or promp to invent; having an aptitude to contrive, or to form new combinations; as, an ingenious author, mechanic. as, an ingenious author, mechanic.""

INGENUITY The quality or power of ready invention; quickness or acuteness in forming new combinations; ingeniousness; skill in devising or combining.

""INSISTENT Standing or resting on something; as, an insistent wall. as, an insistent wall.""

""INTENSITY The state or quality of being intense; intenseness; extreme degree; as, intensity of heat, cold, mental application, passion, etc. as, intensity of heat, cold, mental application, passion, etc.""

Overissuance

Overlengthen

Overmaster

Overnourish

Overnourish

""NUTRITION In the broadest sense, a process or series of processes by which the living organism as a whole (or its component parts or organs) is maintained in its normal condition of life and growth.""

OPERATING operate

ORGANIZED organize

Overorganize

Overornament

PACKAGING package

PEDALLING pedal

PRODUCING produce

PROMISING promise

PROMOTING promote

REACTIONS reaction

Overreliance

Overreport

Overrespond

""SECRETION The act of secreting or concealing; as, the secretion of dutiable goods. as, the secretion of dutiable goods.""

Too quick to react

Excessively likely to be upset

SERVICING service

Appearing more important than

Overslaugh

Overspread

Hyperbolist's report

Exaggeration about summary of financial position

Remaining financial record showing extravagance

Overstrain

Overstress

Oversupply

Oversweeten

Oversweet

Overtaxation

Overtighten

""TREATMENT The act or manner of treating; management; manipulation; handling; usage; as, unkind treatment; medical treatment. as, unkind treatment; medical treatment.""

UTILIZING utilize

Excessive valuation; overestimate.

Overweening

Overweight

Overwinter

""OVIPOSITION The depositing of eggs, esp. by insects.""

See Hemoglobin.Hemoglobin.