of or relating to a parent.
proper to or characteristic of a parent: parental feelings.
having the relation of a parent
Genetics. pertaining to the sequence of generations preceding the filial generation, each generation being designated by a P followed by a subscript number indicating its place in the sequence.

noun Usually parentals. Also called parental unit.

Informal. one's parent (often preceded by the): I'm headed for a vacation with the parentals.

Nearby words

  1. parent metal,
  2. parent teacher association,
  3. parent-in-law,
  4. parent-teacher association,
  5. parentage,
  6. parental generation,
  7. parental home,
  8. parental leave,
  9. parenteral,
  10. parenteric fever

Origin of parental

1615–25; < Latin parentālis “of, belonging to parents,” equivalent to parent- parent + -ālis -al1

Related forms Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for interparental



of or relating to a parent or parenthood
genetics designating the first generation in a line, which gives rise to all succeeding (filial) generations
Derived Formsparentally, adverb

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for interparental



1620s, from Latin parentalis "of parents," from parens (see parent (n.)). Related: Parentally.

Online Etymology Dictionary, © 2010 Douglas Harper

Medicine definitions for interparental




Of, relating to, or characteristic of a parent.
Of or designating the generation of organisms from which hybrid offspring are produced.

The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.