"a caustic substance produced by heating limestone"
"a white crystalline oxide used in the production of calcium hydroxide"
"a sticky adhesive that is smeared on small branches to capture small birds"
"any of various related trees bearing limes"
"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"
"the green acidic fruit of any of various lime trees"