different between tooth vs protocone

English

Etymology

From Middle English tothe, toth, tooth, from Old English t?þ (“tooth”), from Proto-West Germanic *tanþ, from Proto-Germanic *tanþs (“tooth”), from Proto-Indo-European *h?dónts (“tooth”). Related to tusk. Doublet of dent and dens.

Pronunciation

• enPR: to?oth, IPA^(key): /tu??/
• Rhymes: -u??
• Homophone: twoth
• (Wales, Midlands, usually) IPA^(key): /t??/

Noun

tooth (plural teeth)

1. A hard, calcareous structure present in the mouth of many vertebrate animals, generally used for eating.

   Synonyms: see Thesaurus:tooth

   Hyponyms: bicuspid, canine, cuspid, incisor, premolar, molar; see also Thesaurus:tooth

2. A sharp projection on the blade of a saw or similar implement.
3. A projection on the edge of a gear that meshes with similar projections on adjacent gears, or on the circumference of a cog that engages with a chain.
4. (zoology) A projection or point in other parts of the body resembling the tooth of a vertebrate animal.
5. (botany) A pointed projection from the margin of a leaf.
6. (animation) The rough surface of some kinds of cel or other films that allows better adhesion of artwork.
7. (figuratively) Liking, fondness (compare toothsome).

   Synonyms: fondness, appetite, taste, palate

   • 1693, John Dryden, “The Third Satire of Aulus Persius Flaccus”, in The Satires of Decimus Junius Juvenalis:

     These are not dishes for thy dainty tooth

8. (algebraic geometry) An irreducible component of a comb that intersects the handle in exactly one point, that point being distinct from the unique point of intersection for any other tooth of the comb.

Derived terms

Translations

See also

Verb

tooth (third-person singular simple present tooths, present participle toothing, simple past and past participle toothed)

1. To provide or furnish with teeth.
   • 1815, William Wordsworth, “The Brothers”:

     His Wife sate near him, teasing matted wool, / While, from the twin cards toothed with glittering wire / He fed the spindle […]

2. To indent; to jag.

   to tooth a saw

3. To lock into each other, like gear wheels.

Anagrams

• Hotot

Middle English

Noun

tooth

1. Alternative form of tothe

English

Etymology

proto- +? cone

Noun

protocone (plural protocones)

1. (anatomy) A cusp in the corner of an upper molar tooth in mammals.

See also

• deuterocone
• metacone
• paracone
• hypocone