| BOTTOMNESSES | • BOTTOMNESS n. a property that characterizes quarks and hadrons. |
| CYSTOSTOMIES | • cystostomies n. Plural of cystostomy. • CYSTOSTOMY n. the surgical operation of creating an artificial opening from the bladder to the abdomen. |
| DOSIMETRISTS | • dosimetrists n. Plural of dosimetrist. • DOSIMETRIST n. one who uses a dosimeter. |
| METOESTRUSES | • METOESTRUS n. the period in the oestrous cycle following oestrus, characterized by lack of sexual activity, also METESTRUS. |
| MUSSITATIONS | • mussitations n. Plural of mussitation. • MUSSITATION n. muttering to oneself soundlessly; murmuring. |
| PHOTOSYSTEMS | • photosystems n. Plural of photosystem. • PHOTOSYSTEM n. either of two photochemical reaction centers consisting chiefly of photosynthetic pigments complexed with protein and occurring in chloroplasts. |
| POSTMISTRESS | • postmistress n. A female postmaster. • POSTMISTRESS n. a woman who is a postmaster. |
| POSTSTIMULUS | • poststimulus adj. Following a stimulus. • POSTSTIMULUS adj. following on a stimulus. |
| SCOUTMASTERS | • scoutmasters n. Plural of scoutmaster. • Scoutmasters n. Plural of Scoutmaster. • SCOUTMASTER n. the leader of a band of scouts. |
| SEMIOTICISTS | • semioticists n. Plural of semioticist. • SEMIOTICIST n. a practitioner of semiotics, a philosophical theory of signs and symbols, also SEMEIOTICIAN, SEMIOTICIAN. |
| SMITHSONITES | • smithsonites n. Plural of smithsonite. • SMITHSONITE n. natural zinc carbonate, aka calamine. |
| STOMATITISES | • stomatitises n. Plural of stomatitis. • STOMATITIS n. inflammation of the mucous membrane of the mouth. |
| TOASTMASTERS | • toastmasters n. Plural of toastmaster. • TOASTMASTER n. one who presides at a banquet and introduces the after-dinner speakers. |