| AXEROPHTHOLS | • AXEROPHTHOL n. vitamin A, a pale yellow crystalline substance, deficiency of which causes xerophthalmia. |
| EXHILARATORS | • exhilarators n. Plural of exhilarator. • EXHILARATOR n. one who exhilarates. |
| EXOPHTHALMOS | • exophthalmos n. (Pathology) An abnormal protrusion of the eyeball from its socket. • EXOPHTHALMOS n. abnormal protrusion of the eyeball, also EXOPHTHALMUS. |
| EXOPHTHALMUS | • exophthalmus n. Alternative form of exophthalmos. • Exophthalmus prop.n. A taxonomic genus within the family Curculionidae – certain broad-nosed weevils. • EXOPHTHALMUS n. abnormal protrusion of the eyeball, also EXOPHTHALMOS. |
| HEMATOXYLINS | • hematoxylins n. Plural of hematoxylin. • HEMATOXYLIN n. a dye obtained from logwood, also HAEMATOXYLIN. |
| HETEROSEXUAL | • heterosexual adj. Sexually attracted to members of the opposite sex. • heterosexual n. A heterosexual person, or other heterosexual organism. • HETEROSEXUAL adj. attracted to the opposite sex. |
| HYDROXYLATES | • hydroxylates v. Third-person singular simple present indicative form of hydroxylate. • HYDROXYLATE v. to introduce hydroxyl into. |
| PHYLLOTAXIES | • phyllotaxies n. Plural of phyllotaxy. • PHYLLOTAXY n. the arrangement of leaves on a stem and in relation to one another, also PHYLLOTAXIS. |
| PHYTOALEXINS | • phytoalexins n. Plural of phytoalexin. • PHYTOALEXIN n. any substance produced by a plant as a defence against disease. |
| SEXTILLIONTH | • sextillionth adj. The ordinal form of the number one sextillion. • sextillionth n. The person or thing in the sextillionth position. • sextillionth n. One of a sextillion equal parts of a whole. |
| TOXOPHILITES | • toxophilites n. Plural of toxophilite. • TOXOPHILITE n. one fond of or expert at archery. |
| TROPHALLAXES | • trophallaxes n. Plural of trophallaxis. • TROPHALLAXIS n. mutual exchange of nutriment in symbiosis. |
| TROPHALLAXIS | • trophallaxis n. (Biology) The mutual exchange of (fluid) food between individuals, especially in social insects. • TROPHALLAXIS n. mutual exchange of nutriment in symbiosis. |
| XANTHOPHYLLS | • xanthophylls n. Plural of xanthophyll. • XANTHOPHYLL n. a yellow carotenoid pigment found with chlorophyll in green plants and in egg yolks, also XANTHOPHYL. |
| XYLOPHONISTS | • xylophonists n. Plural of xylophonist. • XYLOPHONIST n. one who plays the xylophone. |
| ZANTHOXYLUMS | • zanthoxylums n. Plural of zanthoxylum. • ZANTHOXYLUM n. a plant of a genus of the rue family found in Brazil, in particular the prickly-ash or Hercules club, also XANTHOXYL, ZANTHOXYL. |