[ih-fem-er-uh l] /ɪˈfɛm ər əl/
lasting a very short time; short-lived; transitory:
the ephemeral joys of childhood.
lasting but one day:
an ephemeral flower.
anything short-lived, as certain insects.
lasting for only a short time; transitory; short-lived: ephemeral pleasure
a short-lived organism, such as the mayfly
a plant that completes its life cycle in less than one year, usually less than six months
1560s; see ephemera + -al (1). Related: Ephemerality. Originally of diseases and lifespans; extended sense of “transitory” is from 1630s.
[ih-fem-uh-ral-i-tee] /ɪˌfɛm əˈræl ɪ ti/ noun, plural ephemeralities for 2. 1. the quality or condition of being . 2. something transitory.
- Ephemeral port
networking A TCP or UDP port number that is automatically allocated from a predefined range by the TCP/IP stack software, typically to provide the port for the client end of a client-server communication. BSD used ports 1024 through 4999 as ephemeral ports, though it is often desirable to increase this allocation. (http://ncftpd.com/ncftpd/doc/misc/ephemeral_ports.html). (2002-10-06)
[ih-fem-er-id] /ɪˈfɛm ər ɪd/ noun 1. an insect of the order Ephemeroptera, comprising the mayflies. /ɪˈfɛmərɪd/ noun 1. any insect of the order Ephemeroptera (or Ephemerida), which comprises the mayflies Also called ephemeropteran
[ih-fem-er-is] /ɪˈfɛm ər ɪs/ noun, plural ephemerides [ef-uh-mer-i-deez] /ˌɛf əˈmɛr ɪˌdiz/ (Show IPA) 1. a table showing the positions of a heavenly body on a number of dates in a regular sequence. 2. an astronomical almanac containing such tables. 3. Archaic. an almanac or calendar. /ɪˈfɛmərɪs/ noun (pl) ephemerides (ˌɛfɪˈmɛrɪˌdiːz) 1. a table giving the […]