| BRACHYCEPHALOUS | • brachycephalous adj. Relating to brachycephaly; brachycephalic. • BRACHYCEPHALOUS adj. short-headed, esp. having a skull whose breadth is 80 per cent or more of its length. |
| CHEMOAUTOTROPHY | • chemoautotrophy n. (Biology) A mode of growth in which CO2 is the exclusive source of assimilated carbon, and energy is… • CHEMOAUTOTROPHY n. the production of energy by the oxidation of inorganic compounds, such as iron, ammonia and hydrogen sulphide. |
| HYDROCEPHALUSES | • hydrocephaluses n. Plural of hydrocephalus. • HYDROCEPHALUS n. an accumulation of serous fluid within the cranial cavity, also HYDROCEPHALY. |
| HYDROSULPHUROUS | • HYDROSULPHUROUS adj. as in hydrosulphurous acid. |
| HYPOPHOSPHOROUS | • hypophosphorous adj. (Chemistry) Of or pertaining to hypophosphorous acid or its derivatives. • HYPOPHOSPHOROUS adj. as in hypophosphorous acid, a monobasic acid and a reducing agent. |
| ICHTHYODORULITE | • ichthyodorulite n. (Zoology) One of the spiny plates found on the back and tail of certain skates. • ichthyodorulite n. (Geology) A fossil fish-spine found in stratified rock. • ICHTHYODORULITE n. a fossilised fish-spine, also ICHTHYODORYLITE. |
| ICHTHYOSAURIANS | • ichthyosaurians n. Plural of ichthyosaurian. • ICHTHYOSAURIAN n. a large fossil marine reptile, also ICHTHYOSAUR, ICHTHYOSAURUS. |
| ICHTHYOSAURUSES | • ICHTHYOSAURUS n. a large fossil marine reptile, also ICHTHYOSAUR, ICHTHYOSAURIAN. |
| NEUROHYPOPHYSES | • neurohypophyses n. Plural of neurohypophysis. • NEUROHYPOPHYSIS n. the portion of the pituitary gland that is composed of the infundibulum and posterior lobe and is concerned with the secretion of various hormones. |
| NEUROHYPOPHYSIS | • neurohypophysis n. (Anatomy) The posterior lobe of the pituitary gland, responsible for the release of oxytocin and antidiuretic… • NEUROHYPOPHYSIS n. the portion of the pituitary gland that is composed of the infundibulum and posterior lobe and is concerned with the secretion of various hormones. |
| ODONTORHYNCHOUS | • ODONTORHYNCHOUS adj. of birds, having toothlike ridges inside the beak. |
| ORNITHORHYNCHUS | • ornithorhynchus n. A platypus (genus Ornithorhynchus). • Ornithorhynchus prop.n. A taxonomic genus within the family Ornithorhynchidae – the single species Ornithorhynchus anatinus… • ORNITHORHYNCHUS n. the duckbill platypus. |
| PHENYLTHIOUREAS | • phenylthioureas n. Plural of phenylthiourea. • PHENYLTHIOUREA n. a crystalline compound used to test for the presence of a certain dominant gene (the compound tasting bitter to those who possess the gene). |
| THOROUGHGOINGLY | • thoroughgoingly adv. Fully; completely; thoroughly. • THOROUGHGOING adv. marked by thoroughness or zeal. |