13-letter words containing a, n, i
- occasionalism — a theory that there is no natural interaction between mind and matter, but that God makes mental events correspond to physical perceptions and actions.
- occasionalist — a person who subscribes to the theory of occasionalism
- occasionality — the condition or character of being infrequent or intended for a specific occasion, or that which is infrequent or intended for a specific occasion
- occassionally — Misspelling of occasionally.
- occidentalism — Occidental character or characteristics.
- occidentalize — to make Occidental.
- ocean springs — a town in SE Mississippi.
- ocean sunfish — a brown and gray mola, Mola mola, inhabiting tropical and temperate seas, having the posterior half of the body sharply truncated behind the elongated dorsal and anal fins.
- oceanic crust — the brown, hard outer portion or surface of a loaf or slice of bread (distinguished from crumb).
- oceanic ridge — any section of the narrow, largely continuous range of submarine mountains that extends into all the major oceans and at which new oceanic lithosphere is created by the rise of magma from the earth's interior
- oceanographic — the branch of physical geography dealing with the ocean.
- oceanological — relating to the science and analysis of the ocean
- octane-rating — (of gasoline) a designation of antiknock quality, numerically equal to the percentage of isooctane by volume in a mixture of isooctane and normal heptane that matches the given gasoline in antiknock characteristics.
- octanoic acid — caprylic acid.
- octogenarians — Plural form of octogenarian.
- odontoblastic — Relating to odontoblasts.
- off the chain — wildly entertaining
- oil hardening — to quench (steel) in a bath of oil.
- old bulgarian — the Bulgarian language of the Middle Ages.
- old icelandic — Old Norse as used in Iceland. Abbreviation: OIcel.
- old man river — a name for the Mississippi River
- old norwegian — the language of Norway as spoken and written from the middle of the 12th to the end of the 14th centuries.
- old-fashioned — of a style or kind that is no longer in vogue: an old-fashioned bathing suit.
- oleomargarine — margarine.
- oligosiloxane — (organic chemistry) Any polysiloxane having a relatively small number of -Si-O- groups.
- ombudsmanship — The position or office of an ombudsman.
- omnicorporeal — Comprehending or including all bodies; embracing all substance.
- on a par with — If you say that two people or things are on a par with each other, you mean that they are equally good or bad, or equally important.
- on the parish — receiving parochial relief
- onanistically — In an onanistic manner.
- one of a kind — sb or sth unique
- one-of-a-kind — unique
- one-upmanship — the art or practice of achieving, demonstrating, or assuming superiority in one's rivalry with a friend or opponent by obtaining privilege, status, status symbols, etc.: the one-upmanship of getting into the president's car pool.
- onomastically — In an onomastic way.
- onomatologist — One versed in the history of names.
- onomatopoeial — (obsolete, rare) Of or pertaining to onomatopoeia.
- onomatopoeias — Plural form of onomatopoeia.
- onomatopoetic — the formation of a word, as cuckoo, meow, honk, or boom, by imitation of a sound made by or associated with its referent.
- ontologically — In an ontological manner.
- onus probandi — the burden of proof.
- onychophagist — the practice of biting one's nails, especially when done habitually and as a symptom of emotional disturbance.
- opacification — to cause to become opaque.
- open adoption — an arrangement in which contact is maintained or allowed between a child's adoptive and biological parents.
- open diapason — a full, rich outpouring of melodious sound.
- open interval — (mathematics) A type of interval (range of numbers) that does not include either of its endpoints. For example, when mixing red and blue paint, the proportion of red lies in the interval 0% to 100% but can't be exactly 0% or 100% or it wouldn't be a mixture.
- open learning — a system of further education on a flexible part-time basis
- open marriage — a marriage in which the partners agree that each is free to have sexual relationships with other partners.
- open sandwich — a sandwich served on only one slice of bread, without a covering slice.
- operationally — able to function or be used; functional: How soon will the new factory be operational?
- operativeness — (uncountable) The state or quality of being operative.