| AEROTRAINS | • aerotrains n. Plural of aerotrain. • AEROTRAIN n. a train driven by an aircraft engine, riding on a cushion of air. |
| AEROTROPIC | • aerotropic adj. (Biology) growing towards higher concentrations of oxygen. • AEROTROPIC adj. showing aerotropism, curvature in response to concentration of oxygen. |
| BAROTRAUMA | • barotrauma n. (Pathology) Damage to body tissue caused by a difference in pressure between an air space in or near… • BAROTRAUMA n. injury sustained from failure to equalize the pressure of an air-containing space with that of the surrounding environment. |
| NECROTROPH | • necrotroph n. A parasitoid that ultimately kills its host. • NECROTROPH n. a parasitic organism that kills the living cells of its host and then feeds on the dead material. |
| PARROTRIES | • parrotries n. Plural of parrotry. • PARROTRY n. unintelligent imitation. |
| PROTRACTED | • protracted v. Simple past tense and past participle of protract. • protracted adj. Lasting for a long time or longer than expected or usual. • PROTRACT v. to prolong. |
| PROTRACTOR | • protractor n. One who, or that which, protracts, or causes protraction. • protractor n. A circular or semicircular tool for drawing or measuring angles. • protractor n. (Surgery) An instrument formerly used in extracting foreign or offensive matter from a wound. |
| PROTREPTIC | • protreptic adj. Serving to instruct; didactic. • protreptic n. A didactic speech, book, etc. • PROTREPTIC adj. exhorting or encouraging, also PROTREPTICAL. |
| PROTRUDENT | • PROTRUDENT adj. protruding. |
| PROTRUDING | • protruding v. Present participle of protrude. • PROTRUDE v. to stick out. |
| PROTRUSILE | • protrusile adj. Capable of being protruded. • PROTRUSILE adj. that can be protruded, also PROTRUDABLE, PROTRUSIBLE. |
| PROTRUSION | • protrusion n. (Uncountable) The act of protruding. • protrusion n. (Uncountable) The state of being protruded. • protrusion n. (Countable) Anything that protrudes. |
| PROTRUSIVE | • protrusive adj. That protrudes; protruding. • protrusive adj. Rather conspicuous; obtrusive. • PROTRUSIVE adj. thrusting or impelling forward; as, protrusive motion. |
| SAPROTROPH | • saprotroph n. An organism that lives off dead or decaying organic material by secreting enzymes into it and then absorbing… • SAPROTROPH n. any organism, esp. a fungus or bacterium, that lives and feeds on dead organic matter, also SAPROBIONT. |