D defs.my
Entry 2 senses Webster, 1913

TLC

/(tē`ĕl*sē")/ · IPA /tˌiːˌɛlsˈiː/
01 n. Thin Layer Chromatography. An initialism.
  1. 1.
    Thin Layer Chromatography. An initialism.(Chem.) [initialism]
  2. 2.
    Tender Loving Care; careful nurturing and sympathetic attention. Usually used as applied to people, but also used metaphorically in reference to the need of machines or activities for sustained attention in order to function or proceed as desired.[initialism]