antagonist

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Related to antagonistically: conferred, exultation, underwent, waylaid

antagonist

1. any muscle that opposes the action of another
2. a drug that counteracts the effects of another drug

antagonist

[an′tag·ə‚nist]
(biochemistry)
A molecule that bears sufficient structural similarity to a second molecule to compete with that molecule for binding sites on a third molecule.
(pharmacology)
A drug or other chemical substance capable of reducing the physiological activity of another chemical substance; refers especially to a drug that opposes the action of a drug or other chemical substance on the nervous system by combining with and blocking the nerve receptor.
(physiology)
A muscle that contracts with, and limits the action of, another muscle, called an agonist, with which it is paired.
References in periodicals archive ?
thaliana [66], ULTRAPETALA1 (ULT1) which acts antagonistically with KAN1 to pattern the adaxial-abaxial polarity axis but jointly to pattern the apical-basal axis restricting the expression domain of the SPATULA gene [67], and HDZIPIII transcription factors HAT and ATHB positively regulated by REV [68] were also found (Supplementary Table 2).
Neutrophils egress from bone marrow into the peripheral blood and are antagonistically regulated by CXC chemokine receptor 2 (CXCR2) and CXCR4, both of which are expressed on neutrophils.[sup][14] CXCR2 promotes neutrophils' egress while CXCR4 plays a contrary role in this progress.[sup][15] In acute inflammation, G-CSF shifts this balance so that CXCR2 gains the upper hand.[sup][16] After released into circulation, neutrophils start their way to the site of infection.
And also, the authors argue that both groups have become the bearers of ideological and linguistic domination in Black neoliberal America, and are antagonistically, converging the practical consciousness of the Black or African diaspora towards their respective social class language games to suggest that the socialization of other Black people in the diaspora ought to be examined against and within the dialectical backdrop of this class power dynamic and the cultural and religious heritages of the Black Americans responsible for this phenomenon or process of convergence, i.e., the "AfricanAmericanization" of the Black diaspora.
You had to be antagonistically atheistic as to climate change.
In the hormone-balance model, ABA and GA simultaneously and antagonistically regulate the onset, maintenance and termination of dormancy.
NR0B1 (DAX1) is known for its "antitestis" function; it acts antagonistically to SRY, WT1, and SF1 and hence inhibits AMH (anti-Mullerian hormone) production.
This article sought to suggest that the differences between the three documents under review are not to be seen antagonistically as mutually incompatible claims, but rather as distinct accents that can complement each other.
The SymRK dependent transcriptomes in response to symbiotic or pathogenic signals and to the invasion will be elucidated to get clues about the gene network downstream of SymRK controlling synergistically or antagonistically these interactions.
Frank Baum's The Wonderful Wizard of Oz, imagined new politically (and antagonistically) charged communities through forms of nostalgic longing.
Liz Tomlin attests to this division, suggesting that it requires young theatre-makers to "categorize themselves, for strategic development purposes, as either playwrights or non-text-based artists, reducing the potential for productive cross-pollination" (Tomlin 58), while a pair of reports commissioned to investigate the state of new writing in 2009 antagonistically frame new work as a challenge or threat to writers (British Theatre Consortium; Dunton; Nelson & Shand).
While textual elements position non-dominant cultural identities antagonistically with respect to 'Australia', repetition across segments rearticulates the hegemonic formation.