sem·i·nal 
(sĕmə-nəl)
(sĕmə-nəl)adj.
1. Of, relating to, containing, or conveying semen or seed.
2. Of, relating to, or having the power to originate; creative.
3. Highly influential in an original way; constituting or providing a basis for further development: a seminal idea in the creation of a new theory.
[Middle English, from Old French, from Latin sēminālis, from sēmen, sēmin-, seed; see SEMEN.]
semi·nal·ly adv.
- Indo-European root: kwel-
- Indo-European root: kwel-
- Indo-European root: kwen-
- Indo-European root: kwent(h)-
- Indo-European root: kwer-
- Indo-European root: kwes-
- Indo-European root: kwetwer-
- Indo-European root: kwo-
- Indo-European root: kwon-
- Indo-European root: kwrep-
- Indo-European root: kwr̥mi-
- Indo-European root: kwēt-
- Indo-European root: kā-
- Indo-European root: kō-
- Indo-European root: laks-
- Indo-European root: las-
- Indo-European root: lau-
- Indo-European root: leb-
- Indo-European root: leg-
- Indo-European root: legh-
- Indo-European root: legwh-
- Indo-European root: lei-
- Indo-European root: leid-
- Indo-European root: leig-
- Indo-European root: leigh-