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List of 13-letter words containing

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There are 19 thirteen-letter words containing C, E, H, O and X

ARCHAEOPTERYXarchaeopteryx n. Alternative spelling of archeopteryx.
Archaeopteryx prop.n. A taxonomic genus within the family Archaeopterygidae – known from fossils and widely accepted as the…
archæopteryx n. Rare spelling of archeopteryx.
CEPHALOTHORAXcephalothorax n. The fused head and thorax of spiders and crustaceans.
CEPHALOTHORAX n. the body, or head with thorax, of spiders, crustaceans, etc.
CHALCEDONYXESCHALCEDONYX n. an agate of alternating white opaque and greyish transparent chalcedony.
CHEMOTAXONOMYchemotaxonomy n. (Biochemistry, genetics) The classification or taxonomy of organisms based on differences and similarities…
CHEMOTAXONOMY n. the classification of plants and animals based on similarities and differences in biochemical composition.
CHLORHEXIDINEchlorhexidine n. (Pharmacology) A particular chemical antiseptic and bacteriostatic.
CHLORHEXIDINE n. an antiseptic compound used in skin cleansers, mouthwashes, etc.
CYCLOHEXANONEcyclohexanone n. (Organic chemistry) The alicyclic ketone obtained from cyclohexane by the replacement of a methylene…
CYCLOHEXANONE n. a liquid ketone used esp. as a solvent and in organic synthesis.
CYCLOHEXIMIDEcycloheximide n. (Organic chemistry) An agricultural fungicide produced by the bacterium Streptomyces griseus, widely…
CYCLOHEXIMIDE n. an agricultural fungicide that inhibits protein synthesis and is obtained from a soil bacterium, Streptomyces griseus.
EXECUTORSHIPSexecutorships n. Plural of executorship.
EXECUTORSHIP n. the office of executor.
EXOTHERMICITYexothermicity n. (Chemistry, physics, uncountable) The quality or state of being exothermic.
exothermicity n. (Countable) The release of heat during an exothermic reaction.
EXOTHERMICITY n. the state of being exothermic.
HEXACHLORIDEShexachlorides n. Plural of hexachloride.
HEXACHLORIDE n. a chloride containing six atoms of chlorine.
HEXADACTYLOUShexadactylous adj. (Zoology) Having six fingers or toes.
HEXADACTYLOUS adj. having six fingers, also HEXADACTYLIC.
HIERACOSPHINXhieracosphinx n. A mythical beast found in Egyptian sculpture and European heraldry, being a lion with the head of a falcon.
HIERACOSPHINX n. in ancient Egyptian art, a hawk-headed sphinx.
HYDROXYACETICHYDROXYACETIC adj. as in hydroxyacetic acid, another name for glycolic acid.
LEXICOGRAPHERlexicographer n. One who writes or compiles a dictionary.
LEXICOGRAPHER n. an author or editor of a dictionary.
LEXICOGRAPHIClexicographic adj. Like a dictionary, relating to lexicography (the writing of a dictionary).
LEXICOGRAPHIC adj. relating to lexicography, also LEXICOGRAPHICAL.
METHOXYCHLORSMETHOXYCHLOR n. a relatively nontoxic organochlorine insecticide.
OXYRHYNCHUSESOXYRHYNCHUS n. an Egyptian fish, sacred to the goddess Hathor, represented on coins and sculptures.
SCEUOPHYLAXESSCEUOPHYLAX n. a sacristan.
XEROPHTHALMICxerophthalmic adj. Of or pertaining to xerophthalmia.
XEROPHTHALMIC adj. relating to xerophthalmia.

Scrabble words — in black are valid world wide — in RED are not valid in North America — in GREEN are valid only in North America.
Definitions are short excerpt from the 1Word.ws and WikWik.org.

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