| CYSTEINE | • cysteine n. (Biochemistry) A sulphur-containing nonessential amino acid C3H7NO2S found in most animal proteins;… • CYSTEINE n. an amino acid that oxidizes to cystine, also CYSTEIN. |
| EPISTYLE | • epistyle n. (Architecture, historical) A massive piece of stone or wood laid immediately on the abacus of the capital… • EPISTYLE n. a part of a classical building. |
| ESTERIFY | • esterify v. (Chemistry, of an acid) To combine with an alcohol or (of an alcohol) to combine with an acid, to form an ester. • ESTERIFY v. to convert into an ester. |
| EYELIFTS | • eyelifts n. Plural of eyelift. • EYELIFT n. cosmetic surgery for eyes. |
| EYESIGHT | • eyesight n. Vision or the faculty of sight. • eyesight n. View or the range of vision. • eye␣sight n. Alternative form of eyesight. |
| GAYETIES | • gayeties n. Plural of gayety. • GAYETY n. festive activity, also GAIETY. |
| MYELITES | • myelites n. Plural of myelitis. • MYELITIS n. inflammation of the spinal marrow or its membranes. |
| PERSEITY | • PERSEITY n. an independent existence per se. |
| SERENITY | • serenity n. The state of being serene; calmness; peacefulness. • serenity n. A lack of agitation or disturbance. • serenity n. A title given to a reigning prince or similar dignitary. |
| SEVERITY | • severity n. The state of being severe. • severity n. The degree of something undesirable; badness or seriousness. • SEVERITY n. the state of being severe. |
| SKIEYEST | • SKIEY adj. resembling the sky, also SKYEY. |
| STIEVELY | • STIEVE adv. (Scots) stiff, firm, also STEEVE. |
| SYENITES | • syenites n. Plural of syenite. • SYENITE n. a coarse-grained igneous rock, allied to granite, also SIENITE. |
| WHEYIEST | • WHEYEY adj. like whey also WHEYISH. |
| YEASTIER | • yeastier adj. Comparative form of yeasty: more yeasty. • YEASTY adj. like yeast, also YESTY. |
| YECHIEST | • yechiest adj. Superlative form of yechy: most yechy. • YECHY adj. disgusting. |
| YEUKIEST | • YEUKY adj. itchy. |
| YPERITES | • yperites n. Plural of yperite. • YPERITE n. mustard gas. |