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There are 8 thirteen-letter words containing A, C, E, H, T and X| ARCHAEOPTERYX | • archaeopteryx 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. | | CEPHALOTHORAX | • cephalothorax n. The fused head and thorax of spiders and crustaceans. • CEPHALOTHORAX n. the body, or head with thorax, of spiders, crustaceans, etc. | | CHEMOTAXONOMY | • chemotaxonomy 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. | | HEXACTINELLID | • hexactinellid n. Any of the many sponges of class Hexactinellida, which have hexactine spicules; a glass sponge. • HEXACTINELLID n. a kind of six-rayed sponge. | | HEXADACTYLOUS | • hexadactylous adj. (Zoology) Having six fingers or toes. • HEXADACTYLOUS adj. having six fingers, also HEXADACTYLIC. | | HYDROXYACETIC | • HYDROXYACETIC adj. as in hydroxyacetic acid, another name for glycolic acid. | | TACHYPHYLAXES | • tachyphylaxes n. Plural of tachyphylaxis. • TACHYPHYLAXIS n. very rapid development of tolerance or immunity to the effects of a drug. | | XEROPHTHALMIC | • xerophthalmic 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 WikWik.org and 1Word.ws.
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