A precursor is a substance from which a more active substance is derived. For opium, the opium poppy flower could be regarded as a precursor. For marijuana, seeds for growing could be regarded as a precursor ... and so on and do forth.
Precursor
ARPNET is the precursor of the modern Internet.ARPNET is the precursor of the modern Internet.ARPNET is the precursor of the modern Internet.ARPNET is the precursor of the modern Internet.
The precursor of basophils is the basophil progenitor cell, the precursor of monoblasts is the monoblast cell, the precursor of lymphoblasts is the lymphoblast cell, the precursor of megakaryoblasts is the megakaryoblast cell, and the precursor of myeloblasts is the myeloblast cell. These precursor cells undergo differentiation and maturation processes to become fully functional mature blood cells.
Possession of a precursor is possessing something that can be used to manufacture something else. For instance, lithium batteries and sudafed tablets are precursors to manufacturing methamphetamine. Intent to manufacture a controlled substance means you possessed the precursors with the intentions of making something that is a controlled substance. Hire a lawyer ;-)
The precursor to the steel drum is 'tamboo bamboo'.
The precursor cell to blood platelets are megakaryocyte precursor (MkP) cells in the bone marrow.
A precursor is something that comes before something else.
LNWR Precursor Tank Class was created in 1906.
LNWR Whale Precursor Class was created in 1904.
A precursor is something which comes before something else, not quite the same but similar; an earlier model of something. The typewriter was the precursor to the computer keyboard. The Russian revolution of 1905 was the precursor to the revolution of 1917
The legitimate use of L-Pac is for the manufacture of ephedrine or pseudoephedrine. The illegitimate use is the "one pot" conversion method to methamphetamine. Although limited research seems to disclose that the possession of this chemical compound does not seem to be unlawful, considering its alternative use I would use caution in relying on this assumption.
PrecursorsA precursor to an incident is something that happens before that incident and sometimes acts as an omen. For example, a precursor to colon cancer (sorry, it's the first thing that popped into my head) is the formation of polyps.A precursor to a sneeze could be a bump in the nose. A precursor to a heart attack could be pain in the arm or jaw. A precursor to war could be economic sanctions.A sign that an incident may occur in the future