【化】 nascent oxygen
at the beginning of; early; elementary; first; original
【医】 arch-; arche-; prot-; proto-
accrue; crude; rawness; unripe; give birth to; grow; living; procreate
student
【医】 bio-
oxygen
【医】 o; O2; oxy-; oxygen; oxygenium; phlogisticated gas