فأر1 فَئِرَ, aor. ـْ It (a place) became abundant in فَأْر [i. e. rats, or mice]. (Msb.) A2:  فَأَرَ, (J, O,) aor. as above, (K,) inf. n. فَأْرٌ, (TK,) He dug; (K;) or dug as does the فَأْر [i. e. rat, or mouse]: (M, TA:) and, (K,) as some say, (M, TA,) he buried, and hid. (M, * O, K, TA.) فَأْرٌ [A kind of animal,] well known, (M, K,) [the genus mus; the rat; the mouse; and the like]; with ء, (Lth, S, Msb,) and without ء; (Msb;) [a coll. gen. n.:] n. un. with ة: (Lth, T:) [in the S and O and Msb, فَأْرٌ is said to be pl. of فَأْرَةٌ, but in the last is added, like تَمْرَةٌ and تَمْرٌ, showing that by pl. is meant coll. gen. n.:] the pl. of فأر, (Lth, T, M, K,) or of فأرة, (O, Msb,) is فِئْرَانٌ (Lth, T, M, O, K, Msb) and فِئِرَةٌ: (M, K:) accord. to IAar, (T, TA,) ↓ فُؤَرٌ, like صُرَدٌ, (O, K, TA,) is applied to the male: (T, O, K, TA:) but this last word occurs in the phrase الفَأْر الفُؤَر, [in which الفأر is evidently used in a sense mentioned below, namely, “the muscles,” as is indicated in the T and O,] and, accord. to some, [الفُؤَر is a corroborative epithet, for they say that] this  phrase is like لَيْلٌ لَائِلٌ and يَوْمٌ أَيْوَمُ: (O:) فَأْرَةٌ is applied [accord. to some] to the female; (M;) or [more correctly] to the male and the female, (M, K,) like as حَمَامَةٌ is applied to the male and the female of the [genus] حَمَام. (M, TA.) b2: Also Musk: (M, K:) this is sometimes called فَأْرٌ because it is from the [animal, or from a kind of animal, called] فَأْر, as some say. (M.) b3: And فَأْرَةُ المِسْكِ signifies The bag, follicle, or vesicle, (نَافِجَة, S, M, O, K, or نَافِقَة, T,) of musk: (T, S, M, O, K:) and is also without ء; (M, Msb;) or it should correctly be mentioned in art. فور, [as being called فَارَةٌ] because of the spreading (فَوَرَان) of its odour: or it may be with ء because it has the appearance, or form, of the [animal called] فَأْرَة. (O, K.) It was said to an Arab of the desert أَتَهْمِزُ الفَأْرَةَ, (K, TA, in the CK أَتُهْمَزُ الفَأْرُ,) [meaning Dost thou pronounce فارة with hemz?], and he replied, [understanding the animal so called to be meant,] الهِرَّةُ تَهْمِزُهَا, (K,) meaning, [The cat] bites it. (TA.) b4: [Hence, app., by a synecdoche, فَأْرَةُ المِسْكِ is applied to The mush-animal, or Tibet-musk; moschus moschiferus:] El-Jáhidh says, I asked a perfumer, of [the sect of] the Moatezileh, respecting [the animal called] فأرة المسك, and he said, it is not a mouse, or rat, (فأرة,) but is more like a young gazelle: it is found in the region of Tubbat [or Tibet]; and is hunted; and the man who catches it binds tightly its navel, [or rather its umbilical follicle,] which being pendent, the blood collects in it; then it is slaughtered; and when it is quiet, he cuts out the bound navel, and buries it in barley (شعير) until the congealed blood becomes converted into strong-scented musk. (TA.) b5:  And فَأْرَةُ الإِبِلِ signifies The sweet odour of the camels, [likened to that of the vesicle of musk,] which diffuses itself from them when they have pastured upon the herbs and their blossoms, (S, O,) or, as some say, upon the [plant called]خُزَامَى [q. v.], (O,) and then drunk, and returned from the water, with their skins moist: (S, O:) so says Yaakoob. (S.) Thus in a verse cited voce ذَفِرٌ. (S, O. [Therefore فَأْرَةٌ ذَفْرَآءُ should  there be rendered A pungent sweet odour like that of a vesicle of musk. But see فَارَة, in art. فور.]) A2:  الفَأْرُ signifies also (assumed tropical:)  The muscles: (T, O:) and فَأْرُ المَتْنِ (assumed tropical:)  the flesh on either side of the back-bone; as also يَرَابِيعُ المَتْنِ. (T. [See also الفَارُ, in art. فور.]) A3:  And A species of trees; with and without ء: (M:) and فَأْرَةٌ [as its n. un.] a tree [of that species]. (K.) A4:  Also A certain well-known measure, or quantity, of wheat: in this sense an adventitious word. (O.) فُؤَرٌ: see فَأْرٌ, first sentence.فَئِرٌ A place abounding with فَأْر [rats, or mice]. (S, O.) You say أَرْضٌ فَئِرَةٌ, (O, K,) and أَرْضٌ↓ مَفْأَرَةٌ, (S, O, K,) Land abounding with  (K:) or land containing فأر. (S, O,) [In my copy of the Msb, I find ↓ مَكَانٌ مَفْأَرٌ.] b2:  Milk, (M, K,) and food, (TA,) into which a rat, or mouse, (فأرة,) has fallen. (M, K, TA.) فَأْرَةٌ n. un. (but said by some to be fem.) of فَأْرٌ [q. v.] b2:  Also, (S, M, O, K,) and ↓ فُؤْرَةٌ, (M, K, in the O written فُؤَرَة,) both with and without ء, (M, O,) A flatus (S, M, O, K) that collects (S) in the pastern (S, M, O, K) of a camel, (S,) or of a beast, (M, K,) or of a horse; (O;) which issues (S, M, O, K) when it is felt, (S,) or when it is stroked, and collects when it is left to itself. (M, O, K.) فُؤْرَةٌ: see the next preceding paragraph.فِئْرَةٌ and فِئَرَةٌ: see فَئِيرَةٌ.فُؤَارَةٌ: see the paragraph here following.فَئِيرَةٌ (T, M, O, K) and ↓ فُؤَارَةٌ (M, K) and ↓ فِئْرَةٌ (Lth, T, O, K) and ↓ فِئَرَةٌ, and also without ء, (K,) Fenugreek (حُلْبَة) cooked until its foam boils up, when it is put into a press (مِعصَر), and clarified, then dates are thrown upon it, and the woman in the state following childbirth sups it (Lth, T:) or fenugreek (حُلْبَة) and dates cooked for the woman in the state following child-birth, (M, O, K,) who drinks it, (M,) and for the sick. (O.) مَفْأَرٌ; and its fem., with ة: see فَئِرٌ.