English Words: O
15,494 words · Page 180 of 310
Any organism that is adapted to living in aqueous environments with high solute concentrations (salt, sugar, alcohol), and resisting internal desiccation caused by the osmotic transport of water outside of their cells
A form of hydropriming in which seed is soaked in a solution of polyethylene glycol or similar.
The mechanism by which the cells of an organism protect themselves against osmotic stress.
A sensory receptor, primarily found in the hypothalamus of most homeothermic organisms, that detects changes in osmotic pressure
To regulate osmotic pressure (via osmoregulation, in order to maintain a certain water content, concentration of electrolytes, pH, etc).
The homeostatic regulation of osmotic pressure in the body in order to maintain a certain water content (concentration of electrolytes, pH, etc).
whose transcriptional expression is altered by changes in the osmolarity of the environment
The regulation of cell turgor in response to changes in the osmolarity of the external environment.
Any of several classes of organic compound that undergo transitions between "off" and "on" conformations in response to changes in extracellular water activity (direct osmosensing) or resulting changes in cell structure (indirect osmosensing).
The net movement of solvent molecules, usually water, from a region of lower solute concentration to a region of higher solute concentration through a partially permeable membrane.
The mechanism, in the hypothalamus, that regulates osmolality by the secretion of antidiuretic hormone
Spelling & Dictionary Insight
The English alphabetical index for the letter O contains 15,494 headwords drawn from our Wiktionary-derived dictionary table. At 50 entries per page the browse splits into 310 pages, and you are currently viewing page 180. Every row above is a dictionary-backed entry with a canonical slug, and each links through to a full definition page with pronunciation, senses, etymology, and related-word data where available.
On this page 50 of 50 entries carry a part-of-speech tag and 50 carry at least one stored definition. Coverage varies across letters because Wiktionary volunteers build entries at different speeds for different parts of the alphabet, letters with common starting sounds (S, C, T, P) usually have the densest coverage, while less frequent starters (X, Q, Z) tend to have shorter but more specialised lists. PlainSpell surfaces whatever data is present and links back to the source when a definition is not yet recorded.
For readers using this index as a spelling reference, the guarantee is that every form you see on the list is a documented English headword, not a guess, not a derived inflection lacking a lemma row. If a word you expected to find is absent from the "O" list, it usually means the form exists only as an inflection of another lemma (e.g. a past participle stored under the infinitive) or the entry has not yet been imported from Wiktionary. Use the search bar or the misspelling lookup to resolve these cases.