porphyrin Hear it!

porphyrin Definition

por·phy·rin (pôrfə rin)

noun

any of a group of pyrrole derivatives, found in cytoplasm, that combine with iron and magnesium to form heme and chlorophyll, respectively

Etymology: < Gr porphyra, purple + -in

porphyrin Usage Examples

Converse of object

  • call: Haem is one of a group of similar compounds called porphyrins.
  • secrete: This gland secretes porphyrins ( red tears ) in response to stress.

Preposition: in

  • synovium: Fluorescence measurements performed on the tissue specimens ex vivo showed the predominant accumulation of porphyrins in the synovium of the inflamed joints.

Modifies a noun

  • ring: In the first case, the ring is orientated parallel to the porphyrin ring system of haem.
  • metabolism: Some differences between pro-drugs were relatively small, but might be magnified in tumors, due to their enhanced porphyrin metabolism.
  • biosynthesis: The homologues of the enzymes of the porphyrin biosynthesis pathway are found in different kingdoms of living organisms.
  • dimer: Inclusion of C60 into an adjustable porphyrin dimer generated by dynamic disulfide chemistry.
  • trimer: This confirms that the porphyrin trimer has exactly the right size to bind the exo product.
  • heptamer: The synthetic porphyrin heptamer is potentially an exciting candidate for use in solar cells.

Noun used with modifier

  • iron: The research study is focused on an unknown iron porphyrin compound.

Browse dictionary entries near porphyrin

  1. porphyries
  2. porphyria
  3. porphyratin
  4. porousness
  5. porously
  6. porous
  7. porosity
  8. porosities
  9. poromeric
  10. pornography
  1. porphyritic
  2. porphyroid
  3. porphyropsin
  4. porphyry
  5. porpoise
  6. porpoises
  7. porridge
  8. porringer
  9. Porsena
  10. Porsenna