The most common and most likely answer to this crossword clue is the 4 letter word HEME which also is the latest solution we found used in LA Times in 2020.
Iron-rich blood pigment crossword clue answers
Here's a list of possible crossword answers ranked by the most likely to least likely.
| Answer | Likelyness | Letters | 
|---|---|---|
| HEME | 100 % | 4 | 
Words with a meaning similar to the clue: Iron-rich blood pigment
These words may or may not be a possible solution to this crosswords clue.- hemoglobin
 - haemoglobin
 - hemerythrin
 - heme
 - ore
 - haem
 - hemosiderin
 - hematin
 - hyperbilirubinemia
 - red
 - hematinic
 - haematinic
 
Crossword Answer definitions
HEME noun- The component of hemoglobin (and other hemoproteins) responsible for binding oxygen. It consists of an iron ion that binds oxygen and a porphyrin ring that binds the globin molecules; one molecule binds one molecule of oxygen.
 
More crossword clues leading to the same solutions
Here's a few more crossword clues - all leading to the identical solution