Words whose 13th letter is M

Acetabuliform (a.) Shaped like a shallow cup; saucer-shaped; as, an acetabuliform calyx.

Autotransformer (n.) A transformer in which part of the primary winding is used as a secondary winding, or vice versa; -- called also a compensator or balancing coil.

Brontotherium (n.) A genus of large extinct mammals from the miocene strata of western North America. They were allied to the rhinoceros, but the skull bears a pair of powerful horn cores in front of the orbits, and the fore feet were four-toed. See Illustration in Appendix.

Campaniliform (a.) Bell-shaped; campanulate; campaniform.

Catastrophism (n.) The doctrine that the geological changes in the earth's crust have been caused by the sudden action of violent physical causes; -- opposed to the doctrine of uniformism.

Impressionism (n.) The theory or method of suggesting an effect or impression without elaboration of the details; -- a disignation of a recent fashion in painting and etching.

Individualism (n.) An excessive or exclusive regard to one's personal interest; self-interest; selfishness.

Mandibuliform (a.) Having the form of a mandible; -- said especially of the maxillae of an insect when hard and adapted for biting.

Occasionalism (n.) The system of occasional causes; -- a name given to certain theories of the Cartesian school of philosophers, as to the intervention of the First Cause, by which they account for the apparent reciprocal action of the soul and the body.

Parallelogram (n.) A right-lined quadrilateral figure, whose opposite sides are parallel, and consequently equal; -- sometimes restricted in popular usage to a rectangle, or quadrilateral figure which is longer than it is broad, and with right angles.

Thomsonianism (n.) An empirical system which assumes that the human body is composed of four elements, earth, air, fire, and water, and that vegetable medicines alone should be used; -- from the founder, Dr. Samuel Thomson, of Massachusetts.

Umbraculiform (a.) Having the form of anything that serves to shade, as a tree top, an umbrella, and the like; specifically (Bot.), having the form of an umbrella; umbrella-shaped.

About the author

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".

Copyright © 2011 by Mark McCracken, All Rights Reserved.