| ANAPHYLAXY | • ANAPHYLAXY n. an increased susceptibility to injected foreign material, also ANAPHYLAXIS. |
| HEXADECYLS | • hexadecyls n. Plural of hexadecyl. • HEXADECYL n. another name for the radical cetyl. |
| HEXAPLOIDY | • hexaploidy n. The property of being hexaploid. • HEXAPLOIDY n. the state of having six times the normal number of chromosomes. |
| HEXASTYLES | • hexastyles n. Plural of hexastyle. • HEXASTYLE n. a portico having six columns in front. |
| LEXIGRAPHY | • lexigraphy n. (Uncountable) The representation of words in writing. • lexigraphy n. (Countable) A system of writing in which there is a one-to-one correspondence between symbols and words. • LEXIGRAPHY n. the art of the definition of words. |
| OXYCEPHALY | • oxycephaly n. A kind of cephalic disorder: sometimes the premature closure of the coronal suture plus any other suture… • OXYCEPHALY n. the condition of having a conical skull. |
| PHYLAXISES | • PHYLAXIS n. an inhibiting of infection by the body. |
| PHYLLOTAXY | • phyllotaxy n. Phyllotaxis. • PHYLLOTAXY n. the arrangement of leaves on a stem and in relation to one another, also PHYLLOTAXIS. |
| PHYLLOXERA | • phylloxera n. An insect, Daktulosphaira vitifoliae of the family Phylloxeridae (not the genus Phylloxera), that is… • Phylloxera prop.n. A taxonomic genus within the family Phylloxeridae. • PHYLLOXERA n. a kind of beetle, a pest of vineyards. |
| XANTHOPHYL | • xanthophyl n. Dated form of xanthophyll. • XANTHOPHYL n. a yellow carotenoid pigment found with chlorophyll in green plants and in egg yolks, also XANTHOPHYLL. |
| XANTHOXYLS | • XANTHOXYL n. a plant of a genus of the rue family found in Brazil, in particular the prickly-ash or Hercules club, also ZANTHOXYL, ZANTHOXYLUM. |
| XYLOGRAPHS | • xylographs n. Plural of xylograph. • XYLOGRAPH n. an engraving on wood, or the impression from such an engraving; a print by xylography. |
| XYLOGRAPHY | • xylography n. (Rare) The art of making xylographs. • XYLOGRAPHY n. the art of making engravings on wood, esp. for printing. |
| XYLOPHAGAN | • xylophagan n. Any wood-boring marine bivalve of the genus Xylophaga, which bores into wood. • XYLOPHAGAN n. one of a tribe of beetles whose larvae bore or live in wood. |
| XYLOPHAGES | • xylophages n. Plural of xylophage. • XYLOPHAGE n. an insect larva, mollusc etc. that eats or bores into wood. |
| ZANTHOXYLS | • ZANTHOXYL n. a plant of a genus of the rue family found in Brazil, in particular the prickly-ash or Hercules club, also XANTHOXYL, ZANTHOXYLUM. |