Как по Английски будет 단두증

adjective

Having a relatively broad, short skull (typically with the breadth at least 80 per cent of the length).

Примеры использования:

Thylacoleo are highly specialized brachycephalic predators with greatly hypotrophied molar rows and…

adjective

Of a stem, stalk, etc.: bearing a single capitulum or umbel. of a plant: having its flowers in a single capitulum or umbel.