| APOSPOROUS | • aposporous adj. (Botany) relating to apospory. • APOSPOROUS adj. showing apospory, the development of prothalli from direct outgrowths from the fern frond. |
| APOTROPOUS | • APOTROPOUS adj. anatropous with a ventral raphe. |
| EXOSPOROUS | • exosporous adj. Relating to an exospore. • EXOSPOROUS adj. of or like an exospore, the extreme outer wall of a spore; the epispore. |
| 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. |
| OUTROOPERS | • OUTROOPER n. (obsolete) an auctioneer; the Common Crier of the City, also OUTROPER. |
| 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. |
| POORMOUTHS | • poormouths v. Third-person singular simple present indicative form of poormouth. • POORMOUTH v. to complain about being poor. |
| POULTROONE | • POULTROONE n. (Shakespeare) a poltroon, also POLTROON. |
| PROCOELOUS | • procoelous adj. (Zoology) Of or relating to the procoelians. • procoelous adj. Hollowed or cupped in front. • PROCOELOUS adj. cupped in front. |
| PROLOCUTOR | • prolocutor n. A spokesman, one who speaks on behalf of others. • prolocutor n. A chairman of the lower house of a convocation in the Anglican Church. • PROLOCUTOR n. a presiding officer; a chairman, esp. of the lower house of Convocation. |
| SOUNDPROOF | • soundproof adj. Not allowing sound through. • soundproof v. To make resistant to transmitting sound. • SOUNDPROOF adj. impenetrable by sound. |
| ZOOSPOROUS | • zoosporous adj. Relating to zoospores. • ZOOSPOROUS adj. of or like a zoospore, a swarm-spore. |