13-letter words containing og
- orchidologist — someone who is knowledgeable in orchidology
- organogenesis — Biology. the origin and development of an organ.
- organogenetic — Relating to organogenesis.
- orismological — relating to orismology
- ornithologist — the branch of zoology that deals with birds.
- orthognathous — straight-jawed; having the profile of the face vertical or nearly so; having a gnathic index below 98.
- orthogonalise — to make (vectors, functions, etc.) orthogonal.
- orthogonality — (mathematics, statistics) the property of being orthogonal.
- orthogonalize — to make (vectors, functions, etc.) orthogonal.
- orthographies — Plural form of orthography.
- orthographize — to spell correctly or according to the rules of orthography.
- orthohydrogen — the form of molecular hydrogen in which the nuclei of the two hydrogen atoms contained in the molecule have spins in the same direction.
- oscillographs — Plural form of oscillograph.
- oscillography — a device for recording the wave-forms of changing currents, voltages, or any other quantity that can be translated into electric energy, as sound waves.
- ostrobogulous — (humorous) Slightly risqu\u00e9 or indecent; bizarre, interesting, or unusual.
- oxyhemoglobin — the oxygen-carrying pigment of red blood cells that gives them their red color and serves to convey oxygen to the tissues: occurs in reduced form (deoxyhemoglobin) in venous blood and in combination with oxygen (oxyhemoglobin) in arterial blood. Symbol: Hb.
- palaeobiology — the study of fossil plants and animals
- palaeoecology — the study of fossil animals and plants in order to deduce their ecology and the environmental conditions in which they lived
- palaeontology — Palaeontology is the study of fossils as a guide to the history of life on Earth.
- palaeozoology — the study of fossil animals
- paleethnology — (formerly) the branch of ethnology concerned with the earliest or most primitive human societies.
- paleopedology — the branch of pedology dealing with the soils of past geologic ages.
- pantheologist — a student of, or expert in, pantheology
- parallelogram — a quadrilateral having both pairs of opposite sides parallel to each other.
- pathogenicity — the disease-producing capacity of a pathogen.
- pathognomonic — Medicine/Medical. characteristic or diagnostic of a specific disease: a pathognomonic sign of pneumonia.
- pedagogically — of or relating to a pedagogue or pedagogy.
- peptidoglycan — a polymer, consisting of polysaccharide and peptide chains, responsible for the structure of the cell wall of bacteria
- pharmacognosy — materia medica (def 2).
- pharmacologic — the science dealing with the preparation, uses, and especially the effects of drugs.
- phenomenology — the study of phenomena.
- phlebographic — relating to phlebography or the X-ray imaging of a vein that has been injected with a dye that is visible on the image taken
- phlogisticate — to integrate or blend phlogiston with
- phonautograph — a piece of equipment that records sound visually by detecting the sound waves and indicating them on a graph
- photo-biology — the study of the effects of light on biological systems.
- photogelatine — relating to photographic processes in which gelatine is used in receiving or transferring prints
- photogeologic — of or relating to photogeology
- photographing — a picture produced by photography.
- phraseologist — a person who treats of or is concerned with phraseology.
- phyllogenetic — of or relating to the development of leaves.
- physiognomies — the face or countenance, especially when considered as an index to the character: a fierce physiognomy.
- physiographic — the science of physical geography.
- physiological — of or relating to physiology.
- phytoestrogen — an estrogen-like compound occurring naturally in plants of the legume family and in grains, vegetables, and fruits.
- phytopathogen — an organism that causes disease in plants
- pickerel frog — a meadow frog, Rana palustris, common in eastern North America, similar to the leopard frog but with squarish dark spots on the back.
- piked dogfish — the spiny dogfish.
- plain yoghurt — natural yoghurt, without added flavouring
- planetologist — the branch of astronomy that deals with the physical features of the planets.
- plethysmogram — the recording of a plethysmograph.