| ASEPTICISMS | • ASEPTICISM n. aseptic treatment. |
| ASSUMPTIONS | • assumptions n. Plural of assumption. • ASSUMPTION n. the taking up of a person into heaven. |
| MASSPRIESTS | • mass␣priests n. Plural of mass priest. • MASSPRIEST n. a priest retained in chantries to say masses for the dead. |
| MASTERSHIPS | • masterships n. Plural of mastership. • MASTERSHIP n. the state or office of a master. |
| PALIMPSESTS | • palimpsests n. Plural of palimpsest. • palimpsests v. Third-person singular simple present indicative form of palimpsest. • PALIMPSEST n. writing material (as a parchment or tablet) used one or more times. |
| PARASITISMS | • parasitisms n. Plural of parasitism. • PARASITISM n. the behavior of a parasite. |
| PASSIMETERS | • passimeters n. Plural of passimeter. • PASSIMETER n. a machine for issuing automatic tickets. |
| PASTEURISMS | • PASTEURISM n. a method of treatment, devised by Pasteur, for preventing certain diseases, as hydrophobia, by successive inoculations with an attenuated virus of gradually increasing strength. |
| PROSTATISMS | • prostatisms n. Plural of prostatism. • PROSTATISM n. an illness or disorder associated with enlargement of the prostate. |
| PSALMODISTS | • psalmodists n. Plural of psalmodist. • PSALMODIST n. a singer of psalms. |
| SEMIPOSTALS | • semipostals n. Plural of semipostal. • SEMIPOSTAL n. an issue of postage stamps the proceeds of which are donated to charity. |
| SEPARATISMS | • separatisms n. Plural of separatism. • SEPARATISM n. a belief in, movement for, or state of separation, also SEPARATIONISM. |
| SHIPMASTERS | • shipmasters n. Plural of shipmaster. • SHIPMASTER n. the master or commander of a ship other than a warship. |
| SLIPSTREAMS | • slipstreams n. Plural of slipstream. • slipstreams v. Third-person singular simple present indicative form of slipstream. • SLIPSTREAM v. to drive in the slipstream of a vehicle. |
| SPASMODISTS | • spasmodists n. Plural of spasmodist. • SPASMODIST n. a person whose work is spasmodic. |
| SPINMASTERS | • spinmasters n. Plural of spinmaster. |
| SYMPATHISES | • sympathises v. Third-person singular simple present indicative form of sympathise. • SYMPATHISE v. to be in keeping, accord, or harmony, also SYMPATHIZE. |
| SYMPOSIASTS | • symposiasts n. Plural of symposiast. • SYMPOSIAST n. a participant at a conference. |