ثومثُومٌ [Garlic; the allium sativum of Linn.;] a kind of بَقْل, (AHn, M,) well known, (S,) abundant in the country of the Arabs; (AHn, M;) of two sorts; wild, (AHn, M, K,) and growing in the cultivated tracts, (AHn, M,) or in gardens: (K:) the former sort is called ثُومُ الحَيَّةِ, and is the stronger, (K,) and is brought from Syria: (TA:) each of them is heating, expels flatulence and worms, and is strongly diuretic; and this is the most excellent [property] that is therein: it is good for obliviousness, and asthma, and chronic cough, and [pain in] the spleen and the flank, and colic, and sciatica, &c.: (K: [in which are added many other supposed uses:]) n. un. with ة. (AHn, M, K.) b2:  Hence, as being likened thereto, (M,) ثُومَةٌ signifies also (tropical:) The pommel of a sword. (S, M, K.) Whence, أُمُّ ثُوْمَةَ, said to be the name of a certain woman, may mean (tropical:) A sword. (M.) b3:  [Hence, also,] ثُوْمَةُ ذَكَرِ رَجُلٍ (assumed tropical:)  [The glans of a man's penis]. (Az, in TA voce طُرْثُوثٌ.) b4: الثُّومَةُ also signifies The channel [or oblong depression] between the two mustaches, against the partition between the two nostrils; (IAar, TA;) i. q. الخُنْعُبَةُ, &c. (TA in art. خنعب.) A2:  ثُومٌ is also a dial. var. of فُومٌ, meaning Wheat. (Lh, T, M.) And the latter is used in the [ordinary] sense of the former. (T.)