raréfiant, -e, adj., rarefying.
se raréfier, v.n., to rarefy, to become rarefied.
rarement (rar-mān), adv., rarely, seldom, unfrequently, not often.
rareté (rar-té), n.f., rarity, rareness, scarcity, singularity.
rarissime, adj., very rare, most rare.
ras, -e, adj., close-shaved, short-haired; shorn, shaved, close, bare; smooth, open, flat; short-naped; (nav.) low-built, flat-bottomed, undecked. Un chien à poil —; a short-haired dog. Il a la tête —e; his head is shorn. Il a le menton —; he has a bare, smooth, chin. Il porte la barbe —e; he shaves close. Du velours —; shorn velvet. Etoffe —e; smooth stuff. Serge —e; napless serge. —e campagne; open country. Vaisseau —, or vaisseau — à l’eau; straight-sheered ship. Faire table —e; to clear the board of. A —e terre; level with the ground.
ras, n.m., short-nap cloth. — de carène; (nav.) shipwright’s floating stage. Au — de, à —; nearly level with. — de marée; (nav.) tide-way race. À — de terre; almost touching the ground; skimming the ground. V. raz.
rasade, n.f., bumper, brimmer. Boire une —; to drink a bumper.
rasant, -e, adj., shaving, grazing; sweeping; (fort.) rasant; (milit.) flank. Vue —e; view of a flat, open country.
rasement (raz-mān), n.m., shaving; (milit.) razing or leveling to the ground.