What is eutectoid and eutectic point?

Eutectoid is used to signify that the liquid phase in a eutectic phase diagram has been replaced by a solid phase. Otherwise the eutectoid and eutectic definitions are identical. For example, in steels the solid gamma phase undergoes a eutectoid reaction to become a lamellar mixture of alpha and cementite.

What is eutectic type?

A eutectic system is a homogeneous, solid mixture of two or more substances that form a super-lattice; the mixture either melts or solidifies at a lower temperature than the melting point of any of the individual substances. ... A eutectic system only forms when there is a specific ratio between the components.