Adjective

(en adjective)

Characterized by exceptionally early development or maturity.

* {{quote-news, year=2014

, date=November 14 , author=Stephen Halliday , title=Scotland 1-0 Republic of Ireland: Maloney the hero , work=The Scotsman citation , page= , passage=Scotland’s most encouraging early source of an attacking threat was Andrew Robertson as the precocious left-back charged forward to good effect on a couple of occasions. }}

*

Both groups, also, have already evolved precocious (intracapsular) spore germination.

Exhibiting advanced skills at an abnormally early age.

The precocious child began reading the newspaper at age four.

Adjective

(en adjective)

(zoology, of birds) Hatched from the egg already covered in down and with eyes open; capable of leaving the nest within a few days.

{{quote-book, year=2012, title=Behavioural and physiological adaptations of precocial chicks to arctic environments, author=Karen L Krijgsveld

, passage=Being precocial , shorebird chicks leave the nest soon after hatching to forage by themselves, but, as they are not yet homeothermic, they lose bodyweight while foraging and must be rewarmed by their parents at regular intervals.}}