| ARTHROPODOUS | • ARTHROPODOUS adj. of or like an arthropod, also ARTHROPODAL, ARTHROPODAN. |
| MORPHOTROPIC | • morphotropic adj. (Crystallography) Of or pertaining to morphotropism. • morphotropic adj. Describing a phase transition due to a change in composition. • morphotropic adj. Describing the phase boundary between tetragonal and rhombohedral regions of a ferroelectric. |
| MOTHPROOFERS | • mothproofers n. Plural of mothproofer. • MOTHPROOFER n. a substance that keeps away moths. |
| ORNITHOMORPH | • ornithomorph n. A figure in ancient art resembling a bird. • ORNITHOMORPH n. a figure or design in the form of a bird. |
| ORTHOMORPHIC | • orthomorphic adj. (Cartography) conformal. • ORTHOMORPHIC adj. of a map projection, maintaining true shape over a small area and scale in every direction. |
| ORTHOPTEROID | • orthopteroid n. (Entomology) Any of the insects historically included in the order Orthoptera, including the cockroaches… • ORTHOPTEROID n. a member of the Orthoptera, cockroaches. |
| ORTHOPTEROUS | • orthopterous adj. (Zoology) Belonging to the Orthoptera. • ORTHOPTEROUS adj. pertaining or belonging to insect order including grasshoppers, crickets, etc. |
| ORTHOTROPIES | • ORTHOTROPY n. the state of being orthotropic, growing along a vertical axis. |
| ORTHOTROPISM | • orthotropism n. The property of being orthotropic or orthotropous. • ORTHOTROPISM n. vertical growth. |
| ORTHOTROPOUS | • orthotropous adj. (Botany, of an ovule) Growing straight and having the micropyle at the apex. • ORTHOTROPOUS adj. growing straight, so that the micropyle is opposite the stalk. |
| PROTHONOTARY | • prothonotary n. (Obsolete, historical) A chief legal clerk or notary in Roman Byzantium, and (hence) in Rome. • prothonotary n. (Roman Catholicism) One of the seven prelates, constituting a college in the Roman Curia, whose office… • prothonotary n. A registrar or chief clerk in various courts of law, especially (US) in a county court, (Australia)… |
| PROTOHISTORY | • protohistory n. The period between prehistory and history, during which a culture or civilization has not yet developed… • PROTOHISTORY n. the study of human beings in the times that immediately antedate recorded history. |
| PROTOMORPHIC | • protomorphic adj. (Biology) Having the most primitive character; in the earliest form. • PROTOMORPHIC adj. primordial; primitive. |
| PROTOTROPHIC | • prototrophic adj. (Biology) Of or pertaining to a prototroph or to prototrophy. • PROTOTROPHIC adj. of bacteria, feeding directly on uncombined elements. |
| TROCHOPHORES | • trochophores n. Plural of trochophore. • TROCHOPHORE n. a free-swimming pelagic form of many invertebrates, also TROCHOSPHERE. |
| TROPHOTROPIC | • trophotropic adj. Relating to trophotropy. • TROPHOTROPIC adj. related to trophotropism, direction of growth by nutritional factors. |