childhood disintegrative disorder
missocialisation
malformation
abnormalcy
autism
abnormality
developmental age
hereditary motor and sensory neuropathy
Charcot-Marie-Tooth disease
Costello syndrome
dysphasia
amyoplasia
variation
nondevelopment
learning disorder
learning disability
infantile autism
Williams syndrome
arthrogryposis
pseudolesion
Pallister-Hall syndrome
cub
specific language impairment
infantilism
preteenager
achondrogenesis
sprogget
preteen
acephalocheiria
underparenting
alanna
debilism
threenager
amyotonia
parentship
acheiropody
misdevelopment
juvenile
juvenile person
endophenotype
Marinesco-Sjögren syndrome
nail-patella syndrome
transyouth
tyke
Nijmegen breakage syndrome
congenitalness
acephalopodia
Uner Tan syndrome
neurodeficit
designer baby
Cockayne syndrome
Sotos syndrome
twixter
problem child
progeria
juvenescence
neuroregression
Weaver syndrome
dysmorphology
juvenility
incapableness
nonverbal learning disorder
titch
incapability
Alpers' disease
reactive attachment disorder
oligophrenia
prekindergartner
developmental disability
kiddiness
nanism
oligodactyly
filiation
arrested development
fixation