mendelevium
/ˌmɛndəˈliːvɪəm
/ /ˌmɛndəˈleɪvɪəm/noun [mass noun]
The chemical element of atomic number 101, a radioactive metal of the actinide series. It does not occur naturally and was first made in 1955 by bombarding einsteinium with helium ions. (Symbol: Md) Californium - 249 has a half-life of 350 years; mendelevium - 258, fifty-one days; seaborgium - 266 twenty-one seconds....
- The substance, named mendelevium (abbreviated Mv) [now Md] after the father of the periodic table, was produced by bombarding element 99 with energetic alpha particles from a cyclotron.
- Besides probing fermium further, the team plans next to study element number 101, mendelevium, Backe says.
Origin
1950s: modern Latin, from the name of D. Mendeleev (see Mendeleev, Dmitri).
- with one hand (tied) behind one's back
- with one's back to (or up against) the wall
- with one's bare hands
- with one's compliments
- with one's eyes open
- with one's eyes shut (or closed)
- with one's hand in the cookie jar
- with one's head in the clouds
- with one's heart in one's boots
- with one's nose in the air
- with one's tail between one's legs
- with one's tail up
- with one voice
- with open arms
- with open eyes
- with (or in or having) regard to
- with (or in) reference to
- with (or with all due) respect
- without
- without accident
- without (a) doubt
- without a murmur
- without cease
- without ceremony
- without end