16-letter words starting with o
- oak leaf cluster — a U.S. military decoration in the form of a small bronze twig bearing four oak leaves and three acorns, worn on the ribbon of another decoration for valor, wounds, or distinguished service to signify a second award of the same medal.
- objective danger — a danger, such as a stone fall or avalanche, to which climbing skill is irrelevant
- objective pascal — An extension of the PASCAL language which provides the possibility to use object-oriented programming constructs.
- objective spirit — the human spirit, insofar as it has become capable of a rational identification of its individual self with the community of other spirits but is not yet capable of the identification with the absolute idea that characterizes the absolute spirit.
- oblique triangle — any triangle that does not have a right angle (contrasted with right triangle).
- oblique zenithal — a type of map projection in which part of the earth's surface is projected onto a plane tangential to it between the poles and the equator
- obsequent stream — a stream flowing in a direction opposite to that of the dip of the local strata.
- observation deck — an area on a high building that is surrounded with railings or fencing and which provides panoramic views
- observation post — a forward position, often on high ground, from which enemy activity can be observed and, particularly, from which artillery or mortar fire can be directed.
- observation ward — a ward in a hospital where patients are monitored
- observationalist — One who relies on empirical observations.
- observationality — The property of being observational.
- observer mission — a mission to an area of conflict in order to observe proceedings
- obstreperousness — resisting control or restraint in a difficult manner; unruly.
- obstructionistic — a person who deliberately delays or prevents progress.
- obtuse bisectrix — See under bisectrix (def 1).
- occasional table — a small table with no regular use
- occipitotemporal — (anatomy) Of or pertaining to the occiput and temporal lobe.
- occupation layer — (on an archaeological site) a layer of remains left by a single culture, from which the culture can be dated or identified.
- ocellated turkey — a wild turkey, Agriocharis ocellata, of Yucatán, Belize, and Guatemala, typically having green, blue, reddish-brown, and yellowish-brown plumage of a metallic luster and eyelike spots on the tail.
- octanedioic acid — a colourless crystalline dicarboxylic acid found in suberin and castor oil and used in the manufacture of synthetic resins. Formula: HOOC(CH2)6COOH
- october surprise — a major event, occurring shortly before a presidential election, which influences the result
- oculomotor nerve — either one of the third pair of cranial nerves, consisting chiefly of motor fibers that innervate most of the muscles of the eyeball.
- odds are against — If you say that the odds are against something or someone, you mean that they are unlikely to succeed.
- oder-neisse line — the boundary between Poland and East Germany after World War II.
- odontoid process — the toothlike upward projection at the back of the second vertebra of the neck
- oesophagogastric — (anatomy) Of or pertaining to the oesophagus and the stomach.
- of a certain age — of an unspecified age, but no longer young
- of human bondage — a novel (1915) by W. Somerset Maugham.
- of it own accord — If something happens of its own accord, it seems to happen by itself, without anyone making it happen.
- of the nature of — having the essential character of; like
- off off broadway — experimental or avant-garde drama produced in New York City, in small theaters, halls, churches, etc.
- off one's rocker — Also called runner. one of the curved pieces on which a cradle or a rocking chair rocks.
- off one's stroke — performing or working less well than usual
- off-by-one error — (programming) (Or "Obi-Wan error") An exceedingly common error induced in many ways, such as by starting at zero when you should have started at one or vice-versa, or by writing "< N" instead of "<= N" or vice-versa. Often confounded with fencepost error, which is properly a particular subtype of it. The term zeroth corrects the linguistic off-by-one error of, e.g., referring to the "1st" element of an array whose indexes start from zero.
- off-off-broadway — experimental or avant-garde drama produced in New York City, in small theaters, halls, churches, etc.
- off-road vehicle — An off-road vehicle is a vehicle that is designed to travel over rough ground.
- off-the-shoulder — not covering the shoulder
- offensive weapon — an instrument designed to be used in attack, or an object which may be used in attack
- official referee — (in England) a circuit judge attached to the High Court who is empowered to try certain cases, esp where a detailed examination of accounts or other documents is involved
- ohm, georg simon — Georg Simon Ohm
- ohmic resistance — resistance (def 3a).
- oil installation — a facility or place where petroleum is extracted for industrial purposes
- oil storage tank — a very large industrial container where petroleum is stored
- okefenokee swamp — a large wooded swamp area in SE Georgia.
- old north french — the dialect of Old French spoken in northern France. Abbreviation: ONF.
- old world monkey — any of various anthropoid primates of the family Cercopithecidae, of Africa, the Arabian peninsula, and Asia, typically having a hairless face, forward- or downward-directed nostrils, relatively short arms, flat nails, and either having a rudimentary tail or using the tail for balance rather than grasping, and including the baboon, colobus monkey, guenon, langur, macaque, mandrill, mangabey, patas, proboscis, and talapoin.
- old-girl network — an association among women that is comparable to or modeled on an old-boy network.
- oligodendroglial — Of or pertaining to the oligodendroglia.
- oligonucleotides — Plural form of oligonucleotide.
On this page, we collect all 16-letter words starting with letter O. It’s easy to find right word with a certain length. It is the easiest way to find 16-letter word that beginning with O to use in Scrabble or Crossword puzzles.