Words whose 13th letter is I

Appendicularia (n.) A genus of small free-swimming Tunicata, shaped somewhat like a tadpole, and remarkable for resemblances to the larvae of other Tunicata. It is the type of the order Copelata or Larvalia. See Illustration in Appendix.

Apprenticeship (n.) The time an apprentice is serving (sometimes seven years, as from the age of fourteen to twenty-one).

Arterialization (n.) The process of converting venous blood into arterial blood during its passage through the lungs, oxygen being absorbed and carbonic acid evolved; -- called also aeration and hematosis.

Autofecundation (n.) Self-impregnation.

Caducibranchiate (a.) With temporary gills: -- applied to those Amphibia in which the gills do not remain in adult life.

Conversazioni (pl. ) of Conversazi-one

Crystallogenical (a.) Pertaining to the production of crystals; crystal-producing; as, crystallogenic attraction.

Cyathophylloid (n.) A fossil coral of the family Cyathophyllidae; sometimes extended to fossil corals of other related families belonging to the group Rugosa; -- also called cup corals. Thay are found in paleozoic rocks.

Deuterocanonical (a.) Pertaining to a second canon, or ecclesiastical writing of inferior authority; -- said of the Apocrypha, certain Epistles, etc.

Disassimilation (n.) The decomposition of complex substances, within the organism, into simpler ones suitable only for excretion, with evolution of energy, -- a normal nutritional process the reverse of assimilation; downward metabolism.

Experientialism (n.) The doctrine that experience, either that ourselves or of others, is the test or criterion of general knowledge; -- opposed to intuitionists.

Fibrinoplastin (n.) An albuminous substance, existing in the blood, which in combination with fibrinogen forms fibrin; -- called also paraglobulin.

Galactopoietic (a.) Increasing the flow of milk; milk-producing. -- n. A galactopoietic substance.

Galvanoplastic (a.) Of or pertaining to the art or process of electrotyping; employing, or produced by, the process of electolytic deposition; as, a galvano-plastic copy of a medal or the like.

Haematoplastic (a.) Blood formative; -- applied to a substance in early fetal life, which breaks up gradually into blood vessels.

Hamilton period () A subdivision of the Devonian system of America; -- so named from Hamilton, Madison Co., New York. It includes the Marcellus, Hamilton, and Genesee epochs or groups. See the Chart of Geology.

HolocrystalHygrophthalmic (a.) Serving to moisten the eye; -- sometimes applied to the lachrymal ducts.

Hyperapophysis (n.) A lateral and backward-projecting process on the dorsal side of a vertebra.

Hypidiomorphic (a.) Partly idiomorphic; -- said of rock a portion only of whose constituents have a distinct crystalHypocrystalIncompressibility (n.) The quality of being incompressible, or incapable of reduction in volume by pressure; -- formerly supposed to be a property of liquids.

Macrosporangium (n.) A sporangium or conceptacle containing only large spores; -- opposed to microsporangium. Both are found in the genera Selaginella, Isoctes, and Marsilia, plants remotely allied to ferns.

Myelencephalic (a.) Of or pertaining to the myelencephalon; cerebro-spinal.

Photosynthesis (n.) The process of constructive metabolism by which carbohydrates are formed from water vapor and the carbon dioxide of the air in the chlorophyll-containing tissues of plants exposed to the action of light. It was formerly called assimilation, but this is now commonly used as in animal physiology. The details of the process are not yet clearly known. Baeyer's theory is that the carbon dioxide is reduced to carbon monoxide, which, uniting with the hydrogen o> Phanerocodonic (a.) Having an umbrella-shaped or bell-shaped body, with a wide, open cavity beneath; -- said of certain jellyfishes.

Pharmacognosis (n.) That branch of pharmacology which treats of unprepared medicines or simples; -- called also pharmacography, and pharmacomathy.

Politzerization (n.) The act of inflating the middle ear by blowing air up the nose during the act of swallowing; -- so called from Prof. Politzer of Vienna, who first practiced it.

Professionalism (n.) The following of a profession, sport, etc., as an occupation; -- opposed to amateurism.

Quadrisyllabic () Alt. of Quadri-syllabical

Reconcentration (n.) The act of reconcentrating or the state of being reconcentrated; esp., the act or policy of concentrating the rural population in or about towns and villages for convenience in political or military administration, as in Cuba during the revolution of 1895-98.

Sulphindigotic (a.) Of, pertaining to, or designating, a sulphonic acid obtained, as a blue solution, by dissolving indigo in sulphuric acid; -- formerly called also cerulic sulphuric acid, but properly called indigo-disulphonic acid.

Supernaturalism (n.) The doctrine of a divine and supernatural agency in the production of the miracles and revelations recorded in the Bible, and in the grace which renews and sanctifies men, -- in opposition to the doctrine which denies the agency of any other than physical or natural causes in the case.

Transubstantiation (n.) The doctrine held by Roman Catholics, that the bread and wine in the Mass is converted into the body and blood of Christ; -- distinguished from consubstantiation, and impanation.

Vertebrarterial (a.) Of or pertaining to a vertebrae and an artery; -- said of the foramina in the transverse processes of cervical vertebrae and of the canal which they form for the vertebral artery and vein.

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Mark McCracken Author: Mark McCracken is a corporate trainer and author living in Higashi Osaka, Japan. He is the author of thousands of online articles as well as the Business English textbook, "25 Business Skills in English".

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