2 letters

Fx Hx lx Mx

3 letters

fix ∙ fox ∙ hex ∙ lax ∙ lex ∙ lox ∙ lux ∙ max ∙ mix ∙ Mmx mox MUX ∙ nix ∙ Nox ∙

4 letters

flax ∙ flex ∙ flux ∙ Foix foxy ∙ grex ∙ hoax ∙ ibex ∙ Ifex Ilex ∙ Imax Jinx ∙ laxo lynx ∙ Manx MExE moxa ∙ noxa

5 letters

fixed ∙ fixer ∙ forex ∙ foxed ∙ Gueux helix ∙ hexad ∙ hexon hyrax ∙ index ∙ infix ∙ iudex iuxta Ixion ixora ∙ juxta lasix latex ∙ Lenox Lexan lexis ∙ Linux ∙ Luxor maxim ∙ Mixed ∙ mixen ∙ mixer ∙ moxie ∙ nexus ∙ Nixie ∙ Nomex

6 letters

fixate ∙ fixing ∙ fixity ∙ flexor ∙ forfex ∙ Fornax fornex fornix ∙ foxing ∙ galaxy ∙ hallux ∙ hexane ∙ hexose ∙ isolex ∙ Ixodes klaxon ∙ Klixon larynx ∙ laxity ∙ Lennox lexeme ∙ Librax Maddox Mastix ∙ matrix ∙ maxime maxims ∙ maxixe ∙ mbalax meninx ∙ Mexico mixing ∙ Mixtec myxoid ∙ myxoma ∙ nexrad Nixies ∙

7 letters

fixator fixture ∙ flexion ∙ flexura flexure ∙ foxtrot ∙ gearbox ∙ Halifax hexagon ∙ Hexapla ∙ hexapod ∙ hexeris hexitol hypoxia ∙ hypoxic ∙ Indexer ∙ indoxyl ∙ ioxilan Jiangxi Jukebox ∙ Lanoxin Lascaux lexemic ∙ lexical ∙ lexicon ∙ lockbox ∙ loxotic luxatio luxuria mailbox ∙ Marxism marxist maxilla ∙ maximal ∙ Maximin ∙ maximum ∙ maxwell ∙ mixture ∙ myoxine narthex ∙ noxious ∙

8 letters

fixation ∙ fixative ∙ Fixtures ∙ flaxseed ∙ flexeril flexible ∙ flextime ∙ flexuose ∙ flexuous ∙ flexural ∙ foxglove ∙ foxhound ∙ Foxiness ∙ frataxin Fraxinus geotaxis ∙ gloxinia ∙ hexagram ∙ homeobox ∙ hydroxyl ∙ hypaxial indexing ∙ inflexed ∙ interrex ∙ intersex ∙ Ixodidae janitrix ∙ laxation ∙ laxative ∙ lexigram ∙ lightbox lipoxeny luxation ∙ malaxage ∙ malaxate ∙ maxillae ∙ maximize ∙ mirepoix ∙ myxedema ∙ myxocyte ∙ naloxone ∙ naproxen ∙ neuraxis normoxia nosotaxy

9 letters

fixedness ∙ flexitime ∙ fluxional ∙ genotoxic genotoxin hemopexin hemotoxic ∙ hemotoxin ∙ heterodox ∙ hexacanth hexachord ∙ hexagonal ∙ hexameter ∙ hexastich ∙ Hexastyle ∙ hybaroxia hydroxide ∙ hyperoxia hypertext ∙ hypomyxia hypotaxis ∙ hypoxemia ∙ inflexion ∙ innoxious ∙ ioxaglate isocortex isosexual ixodiasis ∙ Ixodoidea juxtapose ∙ Kalopanax Laxatives ∙ lepothrix Letterbox ∙ Lixiviant loxodrome ∙ loxodromy ∙ luxuriant ∙ mastopexy ∙ Maxibolin maxillary ∙ mediatrix ∙ megapixel ∙ Middlesex minoxidil ∙ monkeypox monoxylon ∙ Moraxella multiplex ∙ mycotoxin ∙ myxoedema ∙ myxovirus ∙ neocortex ∙ nonoxynol nosotoxic nosotoxin

10 letters

fluoxetine ∙ gastropexy Geotextile ∙ glycocalyx heliotaxis ∙ hemiataxia hemithorax hemothorax hepatopexy heterodoxy ∙ heterotaxy ∙ hexahedron ∙ hexavalent ∙ hexokinase ∙ hexosamine histotoxic homosexual ∙ homoxenous hydrotaxis ∙ hyperlexia Hypoxaemia ∙ Indexation ∙ inexorable ∙ inexorably ∙ infliximab juxtaposed ∙ klinotaxis Laxpendant Leptothrix leukotaxis leukotoxin lexicology ∙ lexigraphy ∙ lexiphanic lipoxenous lipoxidase Loxosceles luxembourg malaxation ∙ mannoxylic Maximilian menostaxis mesothorax ∙ metathorax ∙ metoxenous mixohaline mixosaline mixotrophy monoxenous moxalactam moxonidine myelotoxic myorrhexis myxolipoma myxomatous ∙ myxomycete ∙ Myxomycota myxophobia naltrexone ∙ necrotoxin nephropexy ∙ neurotaxis neurotoxic ∙ neurotoxin ∙

11 letters

flexibility ∙ Flexography ∙ floxuridine fluvoxamine ∙ fucoxanthin ∙ genuflexion ∙ Geotextiles ∙ gonotoxemia Haemothorax hematoxylin ∙ hemiapraxia hepatotoxic ∙ hepatotoxin heterotaxia ∙ heterotaxic ∙ heterotaxis ∙ hexadactyly Hexadecimal ∙ hydrothorax ∙ hydroxyurea ∙ hydroxyzine ∙ Hypergalaxy hyperorexia ∙ hyperoxemia hypopharynx ∙ hysteropexy idoxuridine ∙ Immunotoxic ∙ immunotoxin ∙ indoxyluria iridauxesis isoxsuprine ∙ juxtaspinal koniocortex leptomeninx litholapaxy ∙ lixiviation ∙ loxodograph loxoscelism lymphotaxis lymphotoxin Maxillipeds ∙ maxillotomy meniscopexy mesosalpinx methoxsalen metrostaxis mixotrophic ∙ monilethrix moxibustion ∙ multiplexer ∙ myxasthenia myxofibroma myxomatosis ∙ Myxomycetes ∙ myxoneuroma myxopoiesis myxosarcoma nasopharynx ∙ nephrotoxic ∙ nephrotoxin neurapraxia neuropraxia neutrotaxis nucleotoxin

12 letters

flexiloquent fluidextract ∙ galvanotaxis gastrostaxis haematoxylin ∙ hematostaxis heteroduplex ∙ Heterosexism ∙ heterosexual ∙ heteroxenous historrhexis hydrosalpinx hyperflexion hyperpyrexia ∙ hyporeflexia hypoxanthine ∙ hypoxyphilia ichthyotoxin intoxication ∙ juxtapyloric juxtavesical karyorrhexis keratorhexis levofloxacin lexicography ∙ Lexovisaurus lipoxygenase magnetotaxis malaxophobia Maltodextrin mesoappendix mesocolopexy methotrexate ∙ metrorrhexis mitoxantrone Mixoplankton morphallaxis ∙ moxifloxacin multiplexing ∙ myelapoplexy myxedematoid

13 letters

harpaxophobia hematosalpinx hepatorrhexis homosexuality ∙ hydroappendix hydroxylamine ∙ hydroxylation ∙ hydroxylysine hypercathexis hyperekplexia hyperoxaluria hyperreflexia hypoexophoria ichthyootoxin ichthyotoxism immunocomplex ∙ inflexibility ∙ interproximal ∙ isocarboxazid ∙ Jaxartosaurus juxtaposition ∙ juxtapositive lateroflexion levothyroxine lexicographer ∙ loxophthalmus maxillofacial ∙ monoauxotroph mycotoxicosis ∙ myxochondroma myxopapilloma neurobiotaxis neurotoxicity ∙ nosotoxicosis

14 letters

hexosaminidase ∙ hydroxyapatite ∙ hyperexophoria hyperextension ∙ hysterorrhexis inframaxillary ∙ intermaxillary ∙ intersexuality ∙ juxtaarticular juxtallocortex juxtamedullary laryngopharynx mesenteriopexy nephrotoxicity ∙

15 letters

gastromyxorrhea heterosexuality ∙ hexachlorophene ∙ hexylresorcinol ∙ ichthytaxidermy interparoxysmal ∙ intertextuality ∙ juxtaepiphysial juxtaglomerular lactoperoxidase methylxanthines ∙ myeloperoxidase

16 letters

hemopneumothorax homosexualphobia hydroxocobalamin hysterocystopexy ichthyohemotoxin mesosigmoidopexy Microoxygenation myxofibrosarcoma

17 letters

hydropneumothorax hydroxyprolinemia hydroxytryptamine hyperthyroxinemia ichthyohemotoxism ichthyosarcotoxin ichthyotoxicology maxillomandibular

18 letters

gingivolinguoaxial hydroxychloroquine ichthyosarcotoxism

19 letters

medroxyprogesterone myringostapediopexy

20 letters

ichthyoacanthotoxism

23 letters

myxochondrofibrosarcoma

29 letters

hexakosioihexekontahexaphobia

Words with a ∙ are valid Scrabble words (SOWPODS word list)