Monier-Williams: A Sanskrit-English Dictionary (p. 781)
madhuka, (ifc.) = madhu g. ura-ādi; mfn. honey-coloured (only in -locana, "having honey-coloured eyes", N. of Siva) MBh.; sweet (in taste) W.; mellifluous, melodious ib.; m. a species of tree R. Var. (Bassia Latifolia or Jonesia Asoka L.); Parra jacana or Goensis L.; liquorice L. (cf. n.); a kind of bard or panegyrist L.; the son of a Maitreya and a married Āyogavī L.; (madh-) N. of a man ŚBr.; (ā) f. Menispermum Glabrum L.; Glycyrrhiza Glabra L.; black Panic L.; N. of a river VP.; n. liquorice Suśr. (cf. m.); old honey L.; tin L.

Monier-Williams: A Sanskrit-English Dictionary (p. 781)
madhūka, m. (fr. madhu) a bee ŚāṅkhGṛ.; Bassia latifolia (from the blossoms and seeds of which arrac is distilled and oil extracted) ib. MBh. Kāv. &c.; n. the blossoms or fruit of Bassia latifolia, L.; liquorice, L.; bees-wax, L.