As nouns the difference between embryon and pitch
is that
embryon is while
pitch is a sticky, gummy substance secreted by trees; sap or
pitch can be a throw; a toss; a cast, as of something from the hand or
pitch can be (music) the perceived frequency of a sound or note.
As a verb pitch is
to cover or smear with pitch or
pitch can be (
senseid)to throw or
pitch can be to produce a note of a given pitch.