l amino acidl c a ol d pl f s el f tl sugerl u m olalabile complexlabile hydrogenlabilitylable paperlachrymatorlacquerlacrimatorlacrimatory factorlactamlactoneladder networklagrangian coordinateslagrangian functionlambda pointlaminar flowlaminatelanthanide contractionlanthanide serieslanthanideslanthanumlaplace expansionlaplace lawlaplace operatorlaplace transformationlaplacianlardlaser gainlatent heatlatent heat of fusionlatent heat of sublimationlatent heat of varporizationlatexlatticelattice constantlattice defectlattice dynamiclattice energylattice heat capacitylattice heat conductivitylattice imperfectionlattice ionlattice matrix