A red pigment produced in the root nodules of leguminous plants, consisting of a haem-containing protein which regulates the supply of oxygen to the nitrogen-fixing bacteroids.
Origin
1940s. From leg- + haemoglobin.
Definition of leghaemoglobin in US English:
leghaemoglobin
(also leghemoglobin)
nounˌlɛɡˌhiːməˈɡləʊbɪn
Biochemistry
A red pigment produced in the root nodules of leguminous plants, consisting of a haem-containing protein which regulates the supply of oxygen to the nitrogen-fixing bacteroids.