angio-

1.
a learned borrowing from Greek meaning “vessel,” “container,” used in the formation of compound words:
angiosperm.
Also, especially before a vowel, angi-.
Origin
< Greek, combining form representing angeîon, equivalent to áng(os) vessel, vat, shell + -eion diminutive suffix
British Dictionary definitions for angio-

angio-

combining form
1.
indicating a blood or lymph vessel; seed vessel: angiology, angiosperm, angioma
Word Origin
from Greek angeion vessel
Word Origin and History for angio-

before verbs angi-, word-forming element now usually meaning "covered or enclosed by a seed or blood vessel," from Latinized form of Greek angeion "a vessel, receptacle," diminutive of angos "chest, box," of unknown origin.

angio- in Medicine

angio- or angi-
pref.
Blood and lymph vessel: angiography.