- Y -

The following are commonly used abbreviations, acronyms, and a glossary of specialized terms starting with the letter:   

— Y —

yard — unit of measure, linear distance / length —  (abbreviation yd) = 3’ = 0.9144 m.

year — unit of measure, time — (abbreviation: yr) = 365 days.

years ago (acronym: YA).

Yixian formation – geologic stratigraphic description –.

Yoredale series – geologic stratigraphic description –.

York College (York, NE) (acronym: YC_COC).

York General Hospital & the Hearthstone– medical facility; York, NE – (acronym, YGH).

ytterbium — chemical element — (abbreviation: Yb).

yttrium — chemical element — (abbreviation: Y).

yttrium compounds (as Y) – chemical compound – see NIOSH.