|
Reverse Search
Reverse Search allows you to search within the full text of dictionary entries for words, word parts, and phrases.
Search for entries that contain:
Exact matches of any of the individual words entered in the search box.
Example: Searching for "apple orange" identifies all entries that contain the word "apple" or the word "orange."
Any form of any of the individual words entered in the search box.
Example: Searching for "apple orange" identifies all entries that contain the word "apple" or "apples" or "orange" or "oranges."
Exact matches of all of the individual words entered in the search box.
Example: Searching for "apple orange" identifies all entries that contain the word "apple" and the word "orange."
The exact sequence of words and/or characters entered in the search box (for example, a fragment of a word, a single word, multiple words, or even a phrase containing punctuation)
Example: Searching for "a variety of apple" identifies all entries that contain that phrase. Searching for "app" identifies all entries that contain the letters "app," such as occurrences of "apple," "application," and "apply."
Search within these fields:
Optional:
Limit by part of speech:
bias |
a voltage applied to an electronic device, such as a transistor or a vacuum tube, to establish a reference level of operation. [1/8 definitions] |
cathode ray |
a stream of electrons emitted by a cathode in a vacuum tube. |
cathode-ray tube |
a vacuum tube in which a stream of electrons is accelerated and focused in a beam that produces lighted traces on a screen at one end of the tube, used in television sets, computer monitors, and the like. |
CRT |
abbreviation of "cathode-ray tube," a vacuum tube in which a stream of electrons is accelerated and focused in a beam that produces lighted traces on a screen at one end of the tube, used in television sets, computer monitors, and the like. |
grid current |
the flow of electrons from the grid to the cathode of a vacuum tube. |
magnetron |
a vacuum tube that produces microwaves by the action of an external magnetic field on electrons in the tube. |
pentode |
a vacuum tube containing five electrodes that is used as a voltage amplifier. |
rectifier |
an electrical device, such as a vacuum tube, that converts alternating current to direct current. [1/2 definitions] |
thermionic tube |
a vacuum tube in which an electrically heated cathode causes the emission of electrons or ions. |
transistor |
a compact electronic device that uses semiconductors to regulate current flow and thus requires much less energy for operation than a vacuum tube. [1/2 definitions] |
triode |
a vacuum tube that contains an anode, cathode, and control grid. |
|
|