| BYTOWNITES | • bytownites n. Plural of bytownite. • BYTOWNITE n. a plagioclase intermediate between anorthite and labradorite. |
| CYTOTOXINS | • cytotoxins n. Plural of cytotoxin. • CYTOTOXIN n. a cell-damaging drug. |
| HYPNOTISTS | • hypnotists n. Plural of hypnotist. • HYPNOTIST n. one who practises hypnotism. |
| MYOSTATINS | • myostatins n. Plural of myostatin. • MYOSTATIN n. a protein that prevents muscles from growing too large. |
| OSCITANTLY | • oscitantly adv. In an oscitant manner. • OSCITANT adv. yawning; gaping. |
| OUTSTAYING | • outstaying v. Present participle of outstay. • OUTSTAY v. to surpass in staying power. |
| PROTENSITY | • protensity n. Synonym of protension. • PROTENSITY n. (archaic) duration, extension in time. |
| STATIONARY | • stationary adj. Not moving. • stationary adj. Incapable of being moved. • stationary adj. Unchanging. |
| STATIONERY | • stationery n. Writing materials, envelopes, office materials. • stationery adj. Misspelling of stationary. • STATIONERY n. materials (as paper, pens, and ink) for writing or typing. |
| STAYCATION | • staycation n. (Informal) A vacation spent at or close to home. • staycation v. (Intransitive, informal) To spend a vacation at or close to home. • stay-cation n. Alternative form of staycation. |
| STENOTYPIC | • stenotypic adj. Alternative form of stenotypical. • STENOTYPIC adj. relating to a stenotype. |
| SYNOPTISTS | • synoptists n. Plural of synoptist. • SYNOPTIST n. one of the writers of the Synoptic Gospels. |
| TINKERTOYS | • TINKERTOY n. (tradename) a child's construction set. |
| TOPONYMIST | • toponymist n. One who studies toponymy. • TOPONYMIST n. one who studies toponymy, the study of place-names. |
| TRANSITORY | • transitory adj. Lasting only a short time; temporary. • transitory adj. (Law) Of an action: that may be brought in any county. • TRANSITORY adj. not lasting long. |
| UNCTUOSITY | • unctuosity n. The state or characteristic of being unctuous. • UNCTUOSITY n. the state of being unctuous. |
| UNTOURISTY | • untouristy adj. Not touristy. |