| COSPONSORS | • cosponsors n. Plural of cosponsor. • cosponsors v. Third-person singular simple present indicative form of cosponsor. • co-sponsors n. Plural of co-sponsor. |
| GONOPHORES | • gonophores n. Plural of gonophore. • GONOPHORE n. in certain flowers, an elongate structure bearing the stamens and pistil. |
| IONOPHORES | • ionophores n. Plural of ionophore. • IONOPHORE n. a chemical compound able to combine with an ion and enable it to pass through a cell membrane. |
| MONOPTEROS | • monopteros n. (Architecture) A classical temple made up of one circle of columns supporting a roof. • MONOPTEROS n. a building with single ring of columns supporting a roof. |
| NOOTROPICS | • nootropics n. Plural of nootropic. • NOOTROPIC n. a nootropic drug. |
| PERSONHOOD | • personhood n. The state or period of being a person. • personhood n. The status of being considered as a person. • PERSONHOOD n. being a person. |
| PHONOPORES | • phonopores n. Plural of phonopore. • PHONOPORE n. a kind of sound-conducting apparatus. |
| PONTOONERS | • pontooners n. Plural of pontooner. • PONTOONER n. a builder of pontoon bridges, also PONTONEER, PONTONIER, PONTONNIER. |
| PORTOLANOS | • portolanos n. Plural of portolano. • PORTOLANO n. (Italian) in the Middle Ages, a navigation manual, also PORTOLAN, PORTULAN. |
| PROMOTIONS | • promotions n. Plural of promotion. • PROMOTION n. the act of promoting. |
| PROOEMIONS | • PROOEMION n. a preface, also PROEM, PROOEMIUM. |
| PROPODEONS | • PROPODEON n. in some Hymenoptera, the first abdominal segment, also PROPODEUM. |
| PROTOZOANS | • protozoans n. Plural of protozoan. • PROTOZOAN n. any member of the Protozoa, also PROTOZOON. |
| PROTOZOONS | • PROTOZOON n. any member of the Protozoa, also PROTOZOAN. |
| PROVOLONES | • provolones n. Plural of provolone. • PROVOLONE n. (Italian) a firm pliant smoked cheese of Italian origin. |
| SOUNDPROOF | • soundproof adj. Not allowing sound through. • soundproof v. To make resistant to transmitting sound. • SOUNDPROOF adj. impenetrable by sound. |
| SPOONWORMS | • spoonworms n. Plural of spoonworm. • spoon␣worms n. Plural of spoon worm. • SPOONWORM n. a marine invertebrate of the phylum Echiura with a spoon-like mouthpiece. |
| SPOROGONIA | • sporogonia n. Plural of sporogonium. • SPOROGONIUM n. an organ that produces asexual spores in mosses. |
| SPOROGONIC | • sporogonic adj. Relating to, or possessing sporogonia. • SPOROGONIC adj. relating to a sporogonium, an organ that produces asexual spores in mosses. |
| SPOROZOANS | • sporozoans n. Plural of sporozoan. • SPOROZOAN n. any parasitic protozoan of the class Sporozoa, including the causal organisms of malaria and pebrine, also SPOROZOON. |