Which Joe gave his name to ‘sloppy joes’? We look at five interesting sandwiches and their lexical origins.
A chemical agent able to cause or determine morphogenesis.
- ‘A morphogen is a diffusible substance that specifies the fate and activity of developing cells by its concentration.’
- ‘He suggested that biological forms mirror patterns in the concentrations of hypothetical chemicals called morphogens.’
- ‘Endocrine studies have shown that thyroid hormone is the principle morphogen controlling amphibian metamorphosis.’
- ‘The Hedgehog proteins are secreted morphogens that provide positional information during the development of many multi-cellular animals.’
- ‘For example, many morphogens - molecules that direct cells to grow and differentiate during embryogenesis - are not water - soluble, so biologists know little about how they spread out during early development.’
Are you looking for a word for a foolish person? We explore twelve interesting words to describe the dunderheads in your life.
Before you run for the hills, let’s run through a list of ‘run’ expressions that are running through our minds.
The definitions of ‘buddy’ and ‘bro’ in the OED have recently been revised. We explore their history and increase in popularity.