use-icon

HOW TO USE THE DICTIONARY

To look up an entry in The American Heritage Dictionary of the English Language, use the search window above. For best results, after typing in the word, click on the “Search” button instead of using the “enter” key.

Some compound words (like bus rapid transit, dog whistle, or identity theft) don’t appear on the drop-down list when you type them in the search bar. For best results with compound words, place a quotation mark before the compound word in the search window.

guide to the dictionary

use-icon

THE USAGE PANEL

The Usage Panel is a group of nearly 200 prominent scholars, creative writers, journalists, diplomats, and others in occupations requiring mastery of language. Annual surveys have gauged the acceptability of particular usages and grammatical constructions.

The Panelists

puzzle-icon

NEED HELP SOLVING A CROSSWORD PUZZLE?

Go to our Crossword Puzzle Solver and type in the letters that you know, and the Solver will produce a list of possible solutions.

open-icon

AMERICAN HERITAGE DICTIONARY APP

The new American Heritage Dictionary app is now available for iOS and Android.

scroll-icon

THE AMERICAN HERITAGE DICTIONARY BLOG

The articles in our blog examine new words, revised definitions, interesting images from the fifth edition, discussions of usage, and more.

100-words-icon

See word lists from the best-selling 100 Words Series!

Find out more!

open-icon

INTERESTED IN DICTIONARIES?

Check out the Dictionary Society of North America at http://www.dictionarysociety.com

stream (strēm)
Share:
n.
1.
a. A flow of water in a channel or bed, as a brook, rivulet, or small river.
b. A steady current in such a flow of water.
2. A steady current of a fluid.
3. A large amount or number moving or occurring in steady succession: a stream of commuters; a stream of insults. See Synonyms at flow.
4. A trend, course, or drift, as of opinion, thought, or history.
5. A beam or ray of light.
6. Chiefly British A course of study to which students are tracked.
7. Computers A steady flow of data.
v. streamed, stream·ing, streams
v.intr.
1. To flow in a stream or current.
2. To pour forth or give off a stream; flow: My eyes were streaming with tears.
3. To move or arrive in large numbers; pour: Traffic was streaming by. Fan mail streamed in.
4. To extend, wave, or float outward: The banner streamed in the breeze.
5.
a. To leave a continuous trail of light.
b. To give forth a continuous stream of light rays or beams; shine.
v.tr.
1. To emit, discharge, or exude (a body fluid, for example).
2. Computers To transmit or receive (audio or video content), especially over the internet, in small, sequential packets that permit the content to be played continuously as it is being received and without saving it to a hard disk.
Idiom:
on stream
In or into operation or production: a new power plant soon to go on stream.

[Middle English streme, from Old English strēam; see sreu- in the Appendix of Indo-European roots.]

streamy adj.

The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2018 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
 

Indo-European & Semitic Roots Appendices

    Thousands of entries in the dictionary include etymologies that trace their origins back to reconstructed proto-languages. You can obtain more information about these forms in our online appendices:

    Indo-European Roots

    Semitic Roots

    The Indo-European appendix covers nearly half of the Indo-European roots that have left their mark on English words. A more complete treatment of Indo-European roots and the English words derived from them is available in our Dictionary of Indo-European Roots.

This website is best viewed in Chrome, Firefox, Microsoft Edge, or Safari. Some characters in pronunciations and etymologies cannot be displayed properly in Internet Explorer.