porphyrin
(noun) any of various pigments distributed widely in living tissues
Source: WordNet® 3.1
porphyrin (plural porphyrins)
(organic compound) Any of a class of heterocyclic compounds containing pyrrole rings arranged in a square or other similar shape; they are important in biochemistry in a form with a metal atom in the central cavity (hemoglobin with iron, chlorophyll with magnesium, etc.).
Source: Wiktionary
21 January 2025
(verb) follow, discover, or ascertain the course of development of something; “We must follow closely the economic development is Cuba”; “trace the student’s progress”; “trace one’s ancestry”
Espresso is both a coffee beverage and a brewing method that originated in Italy. When making an espresso, a small amount of nearly boiling water under pressure forces through finely-ground coffee beans. It has more caffeine per unit volume than most coffee beverages. Its smaller serving size will take three shots to equal a mug of standard brewed coffee.
