different between adventitious vs adventitia

English

Etymology

From Latin adventicius (“foreign”), from adveni? (“arrive”).

Pronunciation

• IPA^(key): /?æd.v?n?t??.?s/, /?æd.v?n?t??.?s/
• (Northern California)

Adjective

adventitious (comparative more adventitious, superlative most adventitious)

1. From an external source; not innate or inherent, foreign.
2. Accidental, additional, appearing casually.
   • 2002, Colin Jones, The Great Nation, Penguin 2003, p. 30:

     The adventitious disappearance of those nearer the throne than the duke had, moreover, set tongues awagging.

3. (genetics, medicine) Not congenital; acquired.
4. (biology) Developing in an unusual place or from an unusual source.
   • 1985, R. M. T. Dahlgren, H. T. Clifford, & P. F. Yeo, The Families of the Monocotyledons, page 101

     The Velloziaceae have evolved a woody stem which is covered with a layer of adventitious roots mingled with the fibres of the old leaf sheaths;

Synonyms

• (from an external source): extrinsic
• (accidental, additional): accidental, spontaneous, sporadic; see also Thesaurus:accidental
• (not congenital): acquired

Derived terms

• adventitiously
• adventitiousness

Related terms

Translations

English

Etymology

From the Latin adventitius (“extraneous”).

Noun

adventitia (uncountable)

1. (anatomy, histology) The outermost layer of epithelial tissue encasing a visceral organ.

Related terms

• adventitia bona
• adventitious
• tunica adventitia

Derived terms

• adventicectomy
• adventitial

Translations

Latin

Adjective

advent?tia

1. nominative feminine singular of advent?tius
2. nominative neuter plural of advent?tius
3. accusative neuter plural of advent?tius
4. vocative feminine singular of advent?tius
5. vocative neuter plural of advent?tius

Adjective

advent?ti?

1. ablative feminine singular of advent?tius