The Clue
A caustic (4 letter answer)
The Answer
LIME
Tags
Notes
The answer LIME is seen frequently, appearing about once every 110 puzzles.
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Green shade
Greenish yellow
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Definition
LIME as a noun:
1. (calcium hydroxide, lime, slaked lime, hydrated lime, calcium hydrate, caustic lime, lime hydrate) = a caustic substance produced by heating limestone
2. (calcium oxide, quicklime, lime, calx, calcined lime, fluxing lime, unslaked lime, burnt lime) = a white crystalline oxide used in the production of calcium hydroxide
3. (birdlime, lime) = a sticky adhesive that is smeared on small branches to capture small birds
4. (lime, lime tree, Citrus aurantifolia) = any of various related trees bearing limes
5. (linden, linden tree, basswood, lime, lime tree) = any of various deciduous trees of the genus Tilia with heart-shaped leaves and drooping cymose clusters of yellowish often fragrant flowers; several yield valuable timber
6. the green acidic fruit of any of various lime trees
LIME as a verb:
1. (birdlime, lime) = spread birdlime on branches to catch birds
2. cover with lime so as to induce growth; "lime the lawn"