Associations to the word «Precursor»

Wiktionary

PRECURSOR, noun. That which precurses, a forerunner, a predecessor, an indicator of approaching events.
PRECURSOR, noun. (chemistry) One of the compounds that participates in the chemical reaction that produces another compound.
PRECURSOR TIP, noun. (botany) The reduced upper leaf zone found on many monocotyledons that usually takes the form of a cylindrical extension at the apex of the leaf.
PRECURSOR TIP, noun. (botany) Any thickened or glandular leaf tip that is distinguishable from the rest of the lamina's surface.

Dictionary definition

PRECURSOR, noun. A substance from which another substance is formed (especially by a metabolic reaction).
PRECURSOR, noun. A person who goes before or announces the coming of another.
PRECURSOR, noun. Something that precedes and indicates the approach of something or someone.

Wise words

In words, as fashions, the same rule will hold; Alike fantastic, if too new, or old: Be not the first by whom the new are tried, Nor yet the last to lay the old aside.
Alexander Pope