Noah Webster
Immaculate
IMMAC'ULATE, noun [Latin immaculatus; in and macula, a spot.]
1. Spotless; pure; unstained; undefiled; without blemish; as immaculate reputation; immaculate thoughts. Our Savior has set us an example of an immaculate life and conversation.
2. Pure; limpid; not tinged with impure matter; as an immaculate fountain.
Immaculate conception, the conception of our Savior by the virgin Mary.