[ ˌɪntəsə'sɛpʃ(ə)n ]
■ noun
1》 Medicine the inversion of one portion of the intestine within another.
2》 Botany the growth of a cell wall by the deposition of cellulose.
Origin
C18: from mod. L. intussusceptio(n-) , from L. intus 'within' + susceptio(n-) (from suscipere 'take up').