16-letter words containing a, t, e, n

nuclear transfer — the procedure used to produce the first cloned mammals, in which the nucleus of a somatic cell is transferred into an egg cell whose own nucleus has been removed. This cell is then stimulated by an electric shock to divide and form an embryo
nucleating agent — a substance used to seed clouds to control rainfall and fog formation
nueva ocotepeque — a town in W Honduras.
numbered account — a bank account whose owner is identified by a number for the purpose of preserving anonymity.
nuncupative will — a will made by the oral and unwritten declaration of the testator, valid only in special circumstances.
nutcracker suite — a ballet and concert suite (1892) arranged by Peter Ilyich Tchaikovsky from his orchestral work for a ballet, The Nutcracker.
objective danger — a danger, such as a stone fall or avalanche, to which climbing skill is irrelevant
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.
occasional table — a small table with no regular use
occupation layer — (on an archaeological site) a layer of remains left by a single culture, from which the culture can be dated or identified.
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
odds are against — If you say that the odds are against something or someone, you mean that they are unlikely to succeed.
of a certain age — of an unspecified age, but no longer young
of the nature of — having the essential character of; like
ohmic resistance — resistance (def 3a).
oil storage tank — a very large industrial container where petroleum is stored
on (the) average — as an average quantity, rate, etc.
on its last legs — about to fail
on the back foot — at a disadvantage; outmanoeuvred or outclassed by an opponent
on the bandwagon — on the popular or apparently winning side, as in an election
on the beam-ends — tipping so far to the side as to be in danger of capsizing
on the breadline — impoverished; living at subsistence level
on the downgrade — waning in importance, popularity, health, etc
on the safe side — as a precaution
on the same page — one side of a leaf of something printed or written, as a book, manuscript, or letter.
on the scrapheap — (of people or things) having outlived their usefulness
on the up and up — to, toward, or in a more elevated position: to climb up to the top of a ladder.
on the up-and-up — to, toward, or in a more elevated position: to climb up to the top of a ladder.
onboard computer — onboard a vehicle, ship, plane, train or spacecraft
once upon a time — at one time in the past; formerly: I was a farmer once; a once powerful nation.
one and the same — When two or more people or things are thought to be separate and you say that they are one and the same, you mean that they are in fact one single person or thing.
one for the road — a long, narrow stretch with a smoothed or paved surface, made for traveling by motor vehicle, carriage, etc., between two or more points; street or highway.
one man one vote — One man one vote or one person one vote is a system of voting in which every person in a group or country has the right to cast their vote, and in which each individual's vote is counted and has equal value.
one with another — on average
one's cup of tea — the dried and prepared leaves of a shrub, Camellia sinensis, from which a somewhat bitter, aromatic beverage is prepared by infusion in hot water.
one-armed bandit — slot machine (def 1).
one-party system — a political system in which only one party is allowed
one-way function — (cryptography, mathematics) A function which is easy to compute but whose inverse is very difficult to compute. Such functions have important applications in cryptography, specifically in public-key cryptography. See also: trapdoor function.
oneida community — a society of religious perfectionists established by John Humphrey Noyes, in 1848 at Oneida, N.Y., on the theory that sin can be eliminated through social reform: dissolved and reorganized in 1881 as a joint-stock company.
online thesaurus — a thesaurus or dictionary of words with the same or nearly the same meanings, or synonyms, and their opposites, or antonyms, such as Thesaurus.com, available on the Internet or the World Wide Web, accessed through a web browser, and used by entering a query term into a search box on the site. An online thesaurus provides immediate electronic access to lists of alternate terms for the queried word, covering its various shades of meaning: This online thesaurus showed me that smart, as an adjective, not only means intelligent, but also stylish, or lively, and gave long lists of other words for each meaning.
onomatopoeically — the formation of a word, as cuckoo, meow, honk, or boom, by imitation of a sound made by or associated with its referent.
open parenthesis — left parenthesis
open punctuation — punctuation characterized by sparing use of stops, esp of the comma

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