| BASOPHILES | • basophiles n. Plural of basophile. • BASOPHILE n. such a cell. |
| BISPHENOLS | • bisphenols n. Plural of bisphenol. • BISPHENOL n. a hydrocarbon used in the manufacture of plastics and resins. |
| BLACKSPOTS | • blackspots n. Plural of blackspot. • black␣spots n. Plural of black spot. • BLACKSPOT n. as in accident blackspot, a spot where many accidents occur. |
| BLASTOPORS | • BLASTOPOR n. the opening of the archenteron in the gastrula that develops into the anus of some animals, also BLASTOPORE. |
| BLOCKSHIPS | • blockships n. Plural of blockship. • BLOCKSHIP n. a warship too old for action, but useful in port defence. |
| DISPOSABLE | • disposable n. Any object that is designed to be disposed of rather than refilled or repaired. • disposable adj. That can be disposed of. • disposable adj. That is designed to be discarded rather than reused, refilled or repaired. |
| HYPOBLASTS | • hypoblasts n. Plural of hypoblast. • HYPOBLAST n. the inner or lower layer of the blastoderm. |
| IMPOSSIBLE | • impossible adj. Not possible; not able to be done or happen. • impossible adj. (Colloquial, of a person) Very difficult to deal with. • impossible adj. (Mathematics, dated) imaginary. |
| IMPOSSIBLY | • impossibly adv. Not possibly; in an impossible manner. • impossibly adv. To the point of impossibility. • impossibly adv. Contrary to what had been thought possible. |
| OPOBALSAMS | • opobalsams n. Plural of opobalsam. • OPOBALSAM n. balm of Gilead, the resinous exudation of certain trees. |
| PASODOBLES | • paso␣dobles n. Plural of paso doble. • PASODOBLE n. (Spanish) a fast modern ballroom dance. |
| POSSIBLEST | • possiblest adj. (Nonstandard) superlative form of possible: most possible. • POSSIBLE adj. that can be done. |
| PSALMBOOKS | • psalmbooks n. Plural of psalmbook. • PSALMBOOK n. a book of psalms. |
| SPOONBILLS | • spoonbills n. Plural of spoonbill. • SPOONBILL n. a kind of wading bird with a spoon-shaped bill. |
| STOOPBALLS | • STOOPBALL n. a variation of baseball. |
| SUPPOSABLE | • supposable adj. Capable of being supposed; imaginable. • SUPPOSABLE adj. capable of being supposed. |
| SUPPOSABLY | • supposably adv. Able to be supposed or conjectured. • supposably adv. (Nonstandard) Supposedly. • SUPPOSABLE adv. capable of being supposed. |
| UNPOSSIBLE | • unpossible adj. (Now rare, nonstandard, sometimes humorous) Impossible. • UNPOSSIBLE adj. impossible. |