| Library / English Dictionary |
PRECURSOR
| Pronunciation (US): |  | (GB): | |
I. (noun)
Sense 1
Meaning:
Something that precedes and indicates the approach of something or someone
Synonyms:
forerunner; harbinger; herald; precursor; predecessor
Classified under:
Nouns denoting communicative processes and contents
Hypernyms ("precursor" is a kind of...):
indicant; indication (something that serves to indicate or suggest)
Sense 2
Meaning:
A person who goes before or announces the coming of another
Synonyms:
forerunner; precursor
Classified under:
Hypernyms ("precursor" is a kind of...):
individual; mortal; person; somebody; someone; soul (a human being)
Hyponyms (each of the following is a kind of "precursor"):
predecessor (one who precedes you in time (as in holding a position or office))
Sense 3
Meaning:
A substance from which another substance is formed (especially by a metabolic reaction)
Classified under:
Hypernyms ("precursor" is a kind of...):
material; stuff (the tangible substance that goes into the makeup of a physical object)
Domain category:
biochemistry (the organic chemistry of compounds and processes occurring in organisms; the effort to understand biology within the context of chemistry)
Context examples:
In addition, this agent blocks the peripheral aromatization of androgenic precursors to estrogens.
(Aminoglutethimide, NCI Thesaurus)
These four genes include: amyloid precursor protein (APP), presenilin 1 (PS1), presenilin 2 (PS2) and apolipoprotein E (ApoE).
(Alzheimer's Disease Pathway KEGG, NCI Thesaurus/KEGG)
MTL thinning can be a precursor to cognitive decline and dementia in middle-aged and older adults.
(Sitting Is Bad for Your Brain, The Titi Tudorancea Bulletin)
Representative examples include Burkitt lymphoma, precursor B-lymphoblastic lymphoma, precursor T-lymphoblastic lymphoma, and adult T-cell lymphoma/leukemia.
(Aggressive Adult Non-Hodgkin Lymphoma, NCI Thesaurus)
It also facilitates production of a group of apocarotenoids—organic chemicals derived from carotenoids including vitamin A precursors—that work as signaling molecules influencing a variety of responses in plants including environmental stresses.
(Tomato Pan-Genome Makes Bringing Flavor Back Easier, Agricultural Research Service)
“It may give him a sleepless night. He will find it as sure a precursor of his fate as Openshaw did before him.”
(The Adventures of Sherlock Holmes, by Sir Arthur Conan Doyle)
Beta-amyloid is believed to result from the abnormal processing of the amyloid precursor protein (APP).
(Alzheimer’s protein may have natural antibiotic role, NIH)
This protein is involved in the regulation of amyloid beta A4 precursor protein proteolysis.
(Amyloid Beta A4 Precursor Protein-Binding Family A Member 3, NCI Thesaurus)
The determination of the amount of amyloid beta precursor protein present in a sample.
(Amyloid Beta Precursor Protein Measurement, NCI Thesaurus)
In the Golgi apparatus, APPBP2 is associated with transport or processing of amyloid precursor protein (APP).
(Amyloid Beta Precursor Protein-Binding Protein 2, NCI Thesaurus)
