vernal

from The American Heritage® Dictionary of the English Language, 5th Edition.

• adjective Of, relating to, or occurring in the spring.
• adjective Characteristic of or resembling spring.
• adjective Fresh and young; youthful.

from The Century Dictionary.

• noun The trade-name of diethylmalonvlurea, a colorless, crystalline powder, used in medicine as a soporific.
• Of or pertaining to the spring; belonging to the spring; appearing in spring: as, vernal bloom.
• Of or belonging to youth, the springtime of life.
• In botany, appearing in spring: as, vernal flowers.
• Done or accomplished in spring: as, the vernal migration or molt of birds

from the GNU version of the Collaborative International Dictionary of English.

• adjective Of or pertaining to the spring; appearing in the spring.
• adjective Fig.: Belonging to youth, the spring of life.
• adjective (Astron.) the point of time in each year when the sun crosses the equator when proceeding northward, about March 21, when day and night are of approximately equal duration. The beginning of the Spring season.
• adjective (Bot.) a low, soft grass (Anthoxanthum odoratum), producing in the spring narrow spikelike panicles, and noted for the delicious fragrance which it gives to new-mown hay; -- also called sweet vernal grass. See Illust. in Appendix.
• adjective (Astron.) the signs, Aries, Taurus, and Gemini, in which the sun appears between the vernal equinox and summer solstice.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• adjective Young; fresh.
• adjective Pertaining to spring.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• adjective suggestive of youth; vigorous and fresh
• adjective of or characteristic of or occurring in spring