A scale devised by Alfred Kinsey, used to measure a person's sexuality, ranging from 0 (exclusively heterosexual) to 6 (exclusively homosexual), passing through different stages of bisexuality, including the 3 in the middle (bisexual, attracted to men and women equally). There is also an X option, for those exhibiting no sexual attraction (asexual).

(sciences) The distance over which a quantity changes by a factor of e (the base of natural logarithms)

(simile) Synonym of rare as hen's teeth

(anatomy) A type of tissue found in animals containing a higher than normal amount of the protein collagen formed in a place where an injury has healed.

A nuchal scan.

A nuchal scan.

An ultrasound performed on a pregnant woman to help determine the chances that the foetus may develop chromosomal conditions such as Down syndrome.

(music) A vocal technique in which certain tones out of a complete set of tones are omitted.

A graphical representation on a map, rather like a ruler, that represents its scale.

An edible scallop, species Aequipecten opercularis.