Citations:middleborn

Adjective: "born as the middle child to a parent or family"

 * 1996 — Gary Smalley, Making Love Last Forever, Thomas Nelson (1996), ISBN 9780849940866, page 182:
 * On the positive side, middleborn children are good negotiators and adaptable; they often feel little need to "control."
 * 2006 — Kevin Leman, Single Parenting That Works: Six Keys to Raising Happy, Healthy Children in a Single-Parent Home, Tyndale (2006), ISBN 9781414303345, page 88:
 * Chances are very strong that the rebel in your family was a middleborn child.
 * 2012 — Jonathan Caspi, Sibling Aggression: Assessment and Treatment, Springer Publishing Company (2012), ISBN 9780826124166, page 37:
 * The middleborn child is the outsider in this form of sibling triangle and has less power in the family than the lastborn who is supported by the firstborn.

Noun: "the middle child to be born to a parent or family"

 * 1986 — G. Hugh Allred, Teenager: A Survival Guide for Mom and Dad, Bookcraft (1986), ISBN 9780884945918, page 36:
 * A middleborn who feels left out may become unsure about his place in the family.
 * 1998 — Bill McKibben, Maybe One, Anchor (1999), ISBN 1862300046, page 44:
 * Middleborns and only children score about the same, but for different reasons.
 * 2009 — Kevin Leman, The Birth Order Book: Why You Are The Way You Are, Revell (2009), ISBN 9780800734060, unnumbered page:
 * Yes, I realize that you may be a middleborn who thinks your siblings got all the privileges or the breaks or the spoiling while you had to toe the mark.