Below are possible answers for the crossword clue First stage of something.
6 letter answer(s) to first stage of something
EMBRYO
(botany) a minute rudimentary plant contained within a seed or an archegonium
an animal organism in the early stages of growth and differentiation that in higher forms merge into fetal stages but in lower forms terminate in commencement of larval life
Other crossword clues with similar answers to 'First stage of something'