molar
molar — noun
- molarsingular
- molarsplural
1. a large tooth in the rear part of the upper or lower jaw, with a broad flat top
a large tooth in the rear part of the upper or lower jaw, with a broad flat top designed to crush and grind food into smaller pieces.
Henry had to have one of his lower molars removed because of a deep cavity.
possessive + lower/upper molar
The dentist checked Salma's twelve-year-old molars and said they were coming in nicely.
possessive + age-specific molars (twelve-year-old)
Lucía felt a sharp pain in her molar as she bit into a cold apple.
Dr. Akinwale showed Kasia the X-ray and pointed to the molars at the back of her upper jaw.
- grinder
informal, old-fashioned term for a molar tooth
- back tooth
non-technical term for any tooth at the rear of the mouth, not exclusively a molar
- incisor
the front teeth used for cutting, not grinding
文法句型
molar + verb (e.g., molar hurts)
possessive + molar(s)
用法筆記
Countable; the plural form molars is very common because these teeth usually come in sets of four or more.
常見錯誤
molar — adjective
- molarpositive
- more molarcomparative
- most molarsuperlative
1. relating to the amount of a substance measured in moles — for example, how many
relating to the amount of a substance measured in moles — for example, how many grams of a chemical are dissolved in one litre of liquid, or the volume a gas occupies at a given temperature and pressure.
The lab technician prepared a one-molar solution of sodium chloride for the titration experiment.
one-molar + solution — concentration measurement
Yan calculated glucose's molar mass for her chemistry class and got 180 grams per mole.
molar mass — grams per mole of a substance
Jabari weighed out two grams of sodium hydroxide to make a 0.5 molar solution for the lab experiment.
Gabriel used the molar volume of an ideal gas to predict how much oxygen would form.
- mole-related
informal paraphrase, not a standard scientific term
- molal
⚠️ different meaning — molal refers to moles per kilogram of solvent, not per litre of solution; easily confused
文法句型
molar + noun (mass, concentration, volume, solution)
用法筆記
Technically, molar in chemistry is different from molal (which relates to moles per kilogram of solvent). Do not confuse the two.
常見錯誤
2. relating to the large grinding teeth at the back of the mouth, or to the area of
relating to the large grinding teeth at the back of the mouth, or to the area of the jaw where those teeth sit.
The X-ray showed signs of infection in the molar region of Madison's lower jaw.
molar region — area of jaw around molars
Molar pain sometimes comes from an impacted wisdom tooth pushing against nearby roots.
Dr. Nakamura specialises in molar root canal treatments for patients with severe decay.
The orthodontist placed a metal band around Ritu's molar to anchor the braces.
文法句型
molar + noun (area, region, tooth, root, pain)
用法筆記
When used before another noun (e.g., molar area, molar root), this adjective specifies location or relation to the molar teeth rather than a property of the noun itself.