1) Congenital disease 2) Genetic abnormality 3) Genetic defect 4) Genetic disease 5) Genetic disorder 6) Hereditary condition 7) Hereditary disease 8) Inherited disease 9) Inherited disorder 
Synonym: hypodontia. ... Origin: oligo-+ G. Odous, tooth ... (05 Mar 2000) ... 
(ol″ĭ-go-don´shә) congenital absence of some of the teeth.
Type: Term Pronunciation: ol′i-gō-don′shē-ă Synonyms: hypodontia
The congenital absence of seven or more teeth. Oligodontia is generally a genetic problem and often occurs in families. A team of oral providers, such as a dentist, oral surgeon and orthodontist can coorect the abnormality.
[n] - congenital condition in which some of the teeth are missing
oligodontia Lacking in the normal number of teeth, or having fewer than the normal complement of teeth. Related 'tooth, teeth' word units: bruxo-; dento-.
noun congenital condition in which some of the teeth are missing