streamlined

UK: /ˈstriːmlaɪnd/ US: /ˈstrimˌlaɪnd/ ,(strēm′līnd′)

From the verb streamline: (⇒ conjugate)

streamlined is: ⓘ

v past

v past p

WordReference Random House Learner's Dictionary of American English © 2025

stream•lined /ˈstrimˌlaɪnd/   adj. 

1. shaped so as to offer the least resistance to a current, as of air or water:
   a streamlined automobile design.
2. designed or organized for maximum efficiency:
   a streamlined chain of command.

WordReference Random House Unabridged Dictionary of American English © 2025

stream•lined  (strēm′līnd′), adj. 

1. having a contour designed to offer the least possible resistance to a current of air, water, etc.;
   optimally shaped for motion or conductivity.
2. designed or organized to give maximum efficiency;
   compact.
3. modernized;
   up-to-date.

• streamline + -ed² 1890–95

Collins Concise English Dictionary © HarperCollins Publishers::

streamlined / ˈstriːmˌlaɪnd/ adjective

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

WordReference Random House Learner's Dictionary of American English © 2025

stream•line /ˈstrimˌlaɪn/   v., -lined, -lin•ing, adj. 
v. [~ + object]

1. to make (something) into the shape of a teardrop so as to offer least resistance to air or water:
   to streamline the shape of the car.
2. to change in order to make more efficient or simple:
   to streamline the procedures for getting a work permit.

adj. 

3. streamlined.

WordReference Random House Unabridged Dictionary of American English © 2025

stream•line  (strēm′līn′), n., v., -lined, -lin•ing. adj. 
n. 

1. a teardrop line of contour offering the least possible resistance to a current of air, water, etc.
2. the path of a particle that is flowing steadily and without turbulence in a fluid past an object.

v.t. 

3. to make streamlined.
4. to alter in order to make more efficient or simple.

adj. 

5. streamlined.

• stream + line¹ 1870–75

Collins Concise English Dictionary © HarperCollins Publishers::

streamline / ˈstriːmˌlaɪn/ noun

1. a contour on a body that offers the minimum resistance to a gas or liquid flowing around it

verb (transitive)

1. to make streamlined