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Catalyst
Answer for the clue "Catalyst ", 9 letters:
activator
Word definitions for activator in dictionaries
Wiktionary
Word definitions in Wiktionary
n. 1 One who, or that which, activates. 2 (context biology English) Any chemical or agent which regulates one or more genes by increasing the rate of transcription. 3 (context biology English) A type of effector that increases the rate of enzyme-mediated ...
Wikipedia
Word definitions in Wikipedia
In phosphors and scintillators , the activator is the element added as dopant to the crystal of the material to create desired type of nonhomogeneities. In luminescence , only a small fraction of atoms, called emission centers or luminescence centers , ...
The Collaborative International Dictionary
Word definitions in The Collaborative International Dictionary
activator \activator\ n. 1. any agency bringing about activation; (Biol.) a molecule that increases the activity of an enzyme or a protein that increases the production of a gene product in DNA transcription.
WordNet
Word definitions in WordNet
n. (biology) any agency bringing about activation; a molecule that increases the activity of an enzyme or a protein that increases the production of a gene product in DNA transcription [ant: inhibitor ]
Usage examples of activator.
Blood-steam misted the workings of a wing flap electrohydraulic activator, slowing its motion.
One last point, Alfred: I left temporary activators on the gates between my office and your bedroom door.
With her right foot she gently pushed down on the activator pedal and aligned her Elmeth with Sha's Rik Dom.
But, since the activator was still operating and the entrance was fairly narrow, it continued to function as a curtain of insulating negative force, a curtain which had holes in it through which one could occasionally "peek" by means of the anthropometer at the people imprisoned inside.
Fingering off the sonic activator to return the Aurite crystal's molecular bonds to their stable length, Polar tucked it into his black sash, then half smiled.
Have the lab start with chromosomes 6 and 7, and give me a count of the Hy-3 activators.
Among these activators are magnesium, manganous zinc, ferrous, cobaltous, and nickelous ions, as well as others.
Fanaticism is a prime activator of psychoenergies and the view of consequents is minimal.
The cell activators produced it in abundant amounts as if it were a by-product.
They had taken some retard muties and given them voice box activators that were controlled from within the complex.
Aflame with anger I whirled around and as I struck my holster release the weapon sprang ready into my hand while I simultaneously hit the wide activator buckle of my auto-defence system.
He sauntered to one of his own works, a three-meter-high arrangement of oscillating rods that ran the whole sound spectrum into the high kilohertzes, and passed two fingers over the activator eye.
Since accidental death affects the body from without and is not a result of any organic process, the cell activator is helpless in coping with the damage.
To make a monkey nervous all the time you put extra responders in those activator brain cells concerned with the fear response.
I would assume it was the activator for the range restrictors on the other robots.