There are four varieties of commercially viable coffee: Arabica, Liberica, Excelsa, and Robusta. Growers predominantly plant the Arabica species. Although less popular, Robusta tastes slightly more bitter and contains more caffeine.
ACTIVATOR
activator
(noun) (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
Source: WordNet® 3.1
Etymology
Noun
activator (plural activators)
One who, or that which, activates.
(chemistry) Something that activates a catalyst
(biology) Any chemical or agent which regulates one or more genes by increasing the rate of transcription.
(biology) A type of effector that increases the rate of enzyme-mediated reactions.
A type of dopant used in phosphors and scintillators.
(mining) An agent that enables the flotation of a mineral or minerals.
Source: Wiktionary
Recent Word Finds
Word of the Day
22 December 2024
SUNGLASSES
(noun) (plural) spectacles that are darkened or polarized to protect the eyes from the glare of the sun; “he was wearing a pair of mirrored shades”
Coffee Trivia
