streamlined

a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison.

a chattering or flighty, light-headed person.

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Collins

World English Dictionary

streamline (ˈstriːmˌlaɪn)

—n
1.	a contour on a body that offers the minimum resistance to a gas or liquid flowing around it
2.	an imaginary line in a fluid such that the tangent at any point indicates the direction of the velocity of a particle of the fluid at that point

—vb
3.	to make streamlined

streamlined (ˈstriːmˌlaɪnd)

—*adj*
1.	offering or designed to offer the minimum resistance to the flow of a gas or liquid
2.	made more efficient, esp by simplifying

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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Etymonline

Word Origin & History

streamline

1868 (n.) "line drawn from point to point, so that its direction is everywhere that of the motion of the fluid" [Lamb, "Hydrodynamics," 1906], from stream + line. The adj. is attested from 1898, "free from turbulence," 1907 in sense of "shaped so

that the flow around it is smooth." The verb is attested from 1913 with meaning "give a streamline form to," and 1936 in the extended sense of "simplify and organize."

Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage

Science Dictionary

streamline

(strēm'līn') Pronunciation Key
To construct or reconstruct an object to reduce the amount of drag it undergoes as it moves through a fluid, especially air or water.

American Heritage

Cultural Dictionary

streamline definition

The line traced by a liquid or gas as it moves. Streamlines are most commonly used in describing the flow of a liquid or gas around a solid object.

Note: A “streamlined” design is one in which objects that move through a gas or liquid are shaped to match these lines, and therefore reduce the energy required to produce that motion.

Example sentences

With a streamlined, brushed-for-softness waistband and a sleek, contoured fit.

No matter how sleek and streamlined the aircraft, the human pilot couldn't put

out enough power.

The company is way more streamlined now and it shows.

The gases would sweep neatly past the streamlined projectile but smack into the

blunt obturator.

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Matching Quote

"Well, Adam, it's my guess that the old-fashioned political campaign in a few years will be as extinct as the dodo. It'll be all TV and radio, it'll all be streamlined and nice and easy. Oh mind you, I use the TV and the radio sometimes, but I also get out into the wards. I speak in arenas, armories, street corners—anywhere I can gather a crowd. I even kiss babies. But that's the way I've always done it, and I must say it's usually paid off. But there's no use kidding myself about it. It's on its way out, just as I am. Yes, yes, this is my last campaign, Adam, the last hurrah."

-Frank S. Nugent