ST segment
The portion of a line that falls between two points is called a line segment.
If you are tracing your father's ancestry, you are looking at your paternal ancestry.
mesopyll
renal columns
provenance
the motion is called seismogram
electrocardiogram
septum of the heart divides heart into right and left, that portion of the septum between right and left atria is called (interatrial) septum, while the portion of septum between right and left ventricles is called (interventricular) septum.
A portion of butter is called a Pat of butter
If inner d orbital is involved in hybridization, it is called inner d orbital complex. and if outer d orbital is involved in hybridization then it is called 'outer d orbital complex'.
Fat in seeds is located in the portion of the seed called the endosperm. This is a lipoprotein complex that serves to nourish the developing embryo when the seed germinates.
septum of the heart divides heart into right and left, that portion of the septum between right and left atria is called (interatrial) septum, while the portion of septum between right and left ventricles is called (interventricular) septum.