Someone who, in relation to others, has zero parents, zero grandparents, zero great-grandparents and six great-great-grandparents in common.
Triple-3C:
Person who, in relation to the other person, has zero parents, zero grandparents, zero great-grandparents and six great-great-grandparents in common.
My triple-third-cousin is a good person.
Living being that has zero parents, zero grandparents, zero great-grandparents and six great-great-grandparents in common with other living beings.
Someone who, in relation to others, has zero parents, zero grandparents, zero great-grandparents and four great-great-grandparents in common.
Irregular-triple-third-cousin.
Living being that has zero parents, zero grandparents, zero great-grandparents and five great-great-grandparents in common with other living beings.
irregular-triple-third-cousin.