pit

Stones from cherries, plums, peaches, apricots. Oil extracted from these pits is used in cosmetics, pharmaceuticals, for canning sardines, and as table oil. The press cake left behind contains amygdalin.

1. a small depression in enamel, usually located in a developmental groove where two or more enamel lobes are joined. n 2. a depression in a restoration resulting from nonuniform density.

1. a hollow fovea or indentation.
2. a pockmark.
3. to indent, or to become and remain for a few minutes indented, by pressure.
4. seed of a fruit, e.g. cherry. Strictly refers to the hard woody coating which surrounds the seed.

• anal p. — the proctodeum of the embryo.
• auditory p. — a distinct depression in each auditory placode, marking the beginning of the embryonic development of the internal ear.
• p. bull — a term used in describing various types of dogs used in past times for fighting in pits. Now, usually refers to the specific breed, american pit bull terrier.
• lens p. — a pitlike depression in the fetal head where the lens develops.
• nasal p. — a depression appearing in the olfactory placodes in the early stages of development of the nose. Called also olfactory pit.
• olfactory p. — see nasal pit (above).
• otic p. — early stage in the development of the embryonic inner ear.
• p. pony — pony used in a mine to haul mined rock. Breed varies as long as it is small, e.g. Shetland pony.
• p. of stomach — the epigastric fossa or epigastric region.
• p. viper — see viper.