intergrade
1 of 2verb
in·ter·grade ˌin-tər-ˈgrād 
intergraded; intergrading; intergrades
intransitive verb
: to merge gradually one with another through a continuous series of intermediate forms
intergrade
2 of 2noun
in·ter·grade ˈin-tər-ˌgrād
: an intermediate form
Example Sentences
Recent Examples on the Web
Frank Sargeant, AL.com, 28 June 2017
Noun
Pure Florida's are found mostly from Gainesville, Florida, southward--those in the northern part of the state are primarily intergrades with northern strain bass, biologists say. Frank Sargeant, AL.com, 28 June 2017 Word History
First Known Use
Verb
1874, in the meaning defined above
Noun
1888, in the meaning defined above