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- Field of Otto Hahn's Nobel Prize: Abbr
- H.S. class / with lab / studies
- Lab class
- High-school sci
- Subj. with a lab
- HS lab class
- A science class, briefly
- Bio. relative
- Bio kin, in school
- High-level H.S. class with a lab component
- Lab sci
- A school lab
- Science class, for short
- Physics prereq., maybe
- Thatcher's undergrad major