13-letter words containing l, o, a, d, i
- oil hardening — to quench (steel) in a bath of oil.
- oil-based mud — Oil-based mud is a drilling fluid that is an emulsion containing oil as the base fluid.
- old bulgarian — the Bulgarian language of the Middle Ages.
- old favourite — If you refer to something as an old favourite, you mean that it has been in existence for a long time and everyone knows it or likes it.
- 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 ritualist — Raskolnik.
- old-fashioned — of a style or kind that is no longer in vogue: an old-fashioned bathing suit.
- olduvai gorge — a gorge in Tanzania in which is located a site containing Australopithecine and human skeletal and cultural remains.
- opinionatedly — In an opinionated manner.
- optical drive — optical disk drive
- optical sound — sound recorded on and subsequently played back from an optical or photographic soundtrack, as opposed to a magnetic soundtrack.
- optical wedge — a wedge-shaped filter whose transmittance decreases from one end to the other: used as an exposure control device in sensitometry.
- orbital index — the ratio of the maximum breadth to the maximum height of the orbital cavity multiplied by 100.
- orchid family — the plant family Orchidaceae, characterized by terrestrial or epiphytic herbaceous plants having simple, parallel-veined, usually alternate leaves, complex and often large and showy flowers pollinated primarily by insects, and fruit in the form of a capsule containing numerous minute seeds, and including calypso, fringed orchis, lady's-slipper, pogonia, rattlesnake plantain, vanilla, as well as numerous tropical orchids such as those of the genera Cattleya, Cymbidium, Dendrobium, Phalaenopsis, and Vanda.
- ordinal scale — a scale on which data is shown simply in order of magnitude since there is no standard of measurement of differences: for instance, a squash ladder is an ordinal scale since one can say only that one person is better than another, but not by how much
- ordinary loss — An ordinary loss is a loss in the course of normal business.
- organ-builder — a maker of organs
- orsellic acid — an acid found in lichens
- orthodiagonal — the axis in a crystal
- orthopaedical — Pertaining to orthopaedics; characteristic of orthopaedia.
- ottawa euclid — Euclid
- outstandingly — prominent; conspicuous; striking: an outstanding example of courage.
- over-detailed — having many details: a detailed problem.
- over-idealize — to make ideal; represent in an ideal form or character; exalt to an ideal perfection or excellence.
- overamplified — amplified too much, causing distortion or discomfort, etc
- overland mail — a government mail service, started in 1848, for sending mail from the Mississippi to the Far West.
- overpedalling — the overuse of the piano's pedals
- overqualified — having more education, training, or experience than is required for a job or position.
- paddling pool — A paddling pool is a shallow artificial pool for children to paddle in.
- pamlico sound — a sound between the North Carolina mainland and coastal islands.
- pandiculation — the act of stretching oneself.
- paradise lost — an epic poem (1667) by John Milton.
- paradoxically — having the nature of a paradox; self-contradictory.
- parotid gland — Also called parotid gland. a salivary gland situated at the base of each ear.
- parti-colored — having different colors in different areas or patches; variegated: a parti-colored dress.
- particleboard — a boardlike building material made by compressing sawdust or wood particles with a resin binder
- pearl molding — a molding having the form of a row of pearls.
- pedagogically — of or relating to a pedagogue or pedagogy.
- pedicellation — having a pedicel or pedicels.
- peptidoglycan — a polymer, consisting of polysaccharide and peptide chains, responsible for the structure of the cell wall of bacteria
- perditionable — deserving perdition or damnation
- periodicalist — a writer of articles for periodicals
- periodontally — with respect to periodontal tissue
- perissodactyl — having an uneven number of toes or digits on each foot.
- philo judaeus — c20 b.c.–a.d. c50, Alexandrian Jewish theologian and philosopher.
- pick-and-roll — an offensive maneuver in which a player interposes himself or herself between a teammate with the ball and a defender, then cuts quickly toward the basket for a pass from the same teammate.
- pinar del rio — a city in W Cuba.
- plant kingdom — the plants of the world collectively.