Use our inbuilt science glossary to look up the meaning of a word, see how it can be used in different contexts, and even learn its etymology. Filter by ‘Primary Information’ or ‘Secondary Information’ to find the best results for you.
Cecilia Payne-Gaposchkin
an English-American astronomer who was the first woman to earn a PhD in astronomy from Harvard University
egg tooth
a temporary, pointed projection on the beak of some baby birds that helps them to break out of their eggshell
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