EMITTER

Pronunciation (US):

(GB):

 Dictionary entry overview: What does emitter mean? 

• EMITTER (noun)
  The noun EMITTER has 1 sense:

1. the electrode in a transistor where electrons originate

  Familiarity information: EMITTER used as a noun is very rare.

 Dictionary entry details 

• EMITTER (noun)

Sense 1

Meaning:

The electrode in a transistor where electrons originate

Classified under:

Nouns denoting man-made objects

Hypernyms ("emitter" is a kind of...):

electrode (a conductor used to make electrical contact with some part of a circuit)

Holonyms ("emitter" is a part of...):

electronic transistor; junction transistor; transistor (a semiconductor device capable of amplification)

Derivation:

emit (give off, send forth, or discharge; as of light, heat, or radiation, vapor, etc.)

 Context examples 

A radiopharmaceutical comprised of the thymidine analog, 5-iodo-2-deoxyuridine (idoxuridine), labeled with the positron emitter iodine I 124.

(Iodine I 124 Iododeoxyuridine, NCI Thesaurus)

A radioimmunoconjugate comprised of the chimeric monoclonal antibody G250 conjugated with the positron emitter iodine I 124.

(Iodine I-124 Girentuximab, NCI Thesaurus)

Fourteen of these sources are such strong emitters of X-rays that astronomers categorize them as “ultra-luminous X-ray sources,” or ULXs.

(Chandra Samples Galactic Goulash, NASA)

Labeled with I-131 or other beta emitters (Y-90 or P-32), ethiodol can deliver a high internal radiation dose to certain tumors with minimal effect on healthy tissues.

(Ethiodized oil, NCI Thesaurus)

Californium-252 is a neutron emitter with a high specific activity.

(Californium-252 Fission Neutron Radiation, NCI Thesaurus)

Another emitter of electromagnetic waves: mobile phone antennae they emit less waves than mobile phones but the emissions are constant.

(Health threats caused by mobile phone radiation, EUROPARL TV)

Microwaves, the very same radiation that can heat up your dinner, are produced by a multitude of astrophysical sources, including strong emitters known as masers (microwave lasers), even stronger emitters with the somewhat villainous name of megamasers and the centers of some galaxies.

(Hubble's Megamaser Galaxy, ESA/NASA)