parental

[puh-ren-tl]
adjective
  1. of or relating to a parent.
  2. proper to or characteristic of a parent: parental feelings.
  3. having the relation of a parent
  4. 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.
  1. Informal. one's parent (often preceded by the): I'm headed for a vacation with the parentals.

Origin of parental

1615–25; < Latin parentālis “of, belonging to parents,” equivalent to parent- parent + -ālis -al1
Related formspa·ren·tal·ly, adverbin·ter·par·en·tal, adjectivenon·pa·ren·tal, adjectivenon·pa·ren·tal·ly, adverbpost·pa·ren·tal, adjectiveun·pa·ren·tal, adjectiveun·pa·ren·tal·ly, adverb
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for parental unit

parental

adjective
  1. of or relating to a parent or parenthood
  2. 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 parental unit

parental

adj.

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

Online Etymology Dictionary, © 2010 Douglas Harper

parental unit in Medicine

parental

[pə-rĕntl]
adj.
  1. Of, relating to, or characteristic of a parent.
  2. 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.