| APOSPOROUS | • aposporous adj. (Botany) relating to apospory. • APOSPOROUS adj. showing apospory, the development of prothalli from direct outgrowths from the fern frond. |
| COSPONSORS | • cosponsors n. Plural of cosponsor. • cosponsors v. Third-person singular simple present indicative form of cosponsor. • co-sponsors n. Plural of co-sponsor. |
| EXOSPOROUS | • exosporous adj. Relating to an exospore. • EXOSPOROUS adj. of or like an exospore, the extreme outer wall of a spore; the epispore. |
| HOROSCOPES | • horoscopes n. Plural of horoscope. • HOROSCOPE n. a map of the heavens at the hour or on the day of a person's birth, by which an astrologer predicts the events of a person's life. |
| ISOSPOROUS | • isosporous adj. (Biology) Producing only one kind of spore. • ISOSPOROUS adj. having spores of one kind only, as opposed to heterosporous. |
| ISOTROPOUS | • isotropous adj. (Archaic) isotropic. • ISOTROPOUS adj. having the same properties irrespective of direction, also ISOTROPIC. |
| POORHOUSES | • poorhouses n. Plural of poorhouse. • poor␣houses n. Plural of poor house. • POORHOUSE n. (historical) a place of residence for people too poor to support themselves. |
| POROSCOPES | • poroscopes n. Plural of poroscope. • POROSCOPE n. an instrument for investigating porosity. |
| ROTOSCOPES | • rotoscopes v. Third-person singular simple present indicative form of rotoscope. • ROTOSCOPE v. to create the outline of an object from live-action film for manipulation in an animated film sequence. |
| SOPHOMORES | • sophomores n. Plural of sophomore. • SOPHOMORE n. a second year student in an American college. |
| 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. |
| 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. |
| ZOOSPOROUS | • zoosporous adj. Relating to zoospores. • ZOOSPOROUS adj. of or like a zoospore, a swarm-spore. |